# In the United States Court of Federal Claims

No. 11

- 130 C

(Filed : April 6 , 202 2 )

RETURN MAIL, INC.,

Plaintiff,

v.

UNITED STATES,

Defendant. ) ) ) ) ) ) ) ) ) ) ) Patent infringement case; persuasive , but not precedential, effect of prior decision of the Federal Circuit that was reversed by the Supreme Court on jurisdictional grounds; patent

- eligibility under 35 U.S.C. § 101

Lee L. Kaplan, Smyser Kaplan & Veselka , L.L.P., Houston, Texas, for plaintiff. With him on the briefs was Douglas H. Elliott

, Elliot and Polasek, PLLC, Bellaire, Texas.

Shahar Harel, Trial Attorney, Commercial Litigation Branch, Civil Division, United States Department of Justice, Washington, D.C., for defendant. With him on the briefs were Brian M. Boynton, Acting Assistant Attorney General, Gary L. Hausken, Director , and Rachel Hicks, Attorney
, Commercial Litigation B r anch, Civil Division, United States Department of Justice, Washington, D. C. Of counsel were Rebecca Harker Duttry, Attorney, and Stephan J. Boardman, Attorney, United States Postal Service, Washington, D.C.

OPINION AND ORDER

LETTOW, Senior Judge.

Pending before the court i n this patent infringement case are the United States’ (“the government” or “defendant”) motions for summary judgment under 35 U.S.C. §§ 101 , 102, and 305 and Return Mail, Inc.’s (“plaintiff” or “ Return Mail”) cross

- motions for partial summary judgment under 35 U.S.C. §§ 101 and 305. See ECF Nos. 169, 171

- 73. At issue are claims 42 and 44 of U.S. Patent No. 6,826,548 (the “’548 p atent”), titled “System and Method for Processing Returned Mail

, ” and the reexamination certificate for the ’548 patent

. The ’548 patent claims a “technological invention improving the manner in which undeliverable mail is identified and processed.” Pl.’s § 101 Summ. J. Mot. at 1 (“Pl.’s § 101 Mot.”) , ECF No. 172. Defendant argues that claim s 42 and 44 are not valid claims because (1) they address patent

- ineligi ble subject matter under 35 U.S.C. § 101, see Def.’s § 101 Summ. J. Mot. at 1 (“Def.’s § 101 Mot.”)

, ECF No. 169, (2) the claims are anticipated by prior art under 35 U.S.C. § 102, and (3) the reexamined claims are broader than the original claims of the ’ 548 patent in contravention of 35 U.S.C. § 305
, see Def.’s §§ 102, 305 Summ. J. Mot. at 1 (“Def.’s §§ 102, 305 Mot.”) , ECF No. 171.2 In turn, p laintiff opposes summary judgment under Sections 101, 102, and 305

. S ee Pl.’s Opp’n to Def.’s § 101 Mot. (“Pl.’s § 101 Opp’n”), ECF No. 175; Pl.’s Opp’n to Def.’s § 102 Mot. (“Pl.’s § 102 Opp’n”) , ECF No. 179 ; Pl.’s Opp’n to Def.’s § 305 Mot. (“Pl.’s § 305 Opp’n”), ECF No. 178

. Return Mail also cross

- move s for summary judgment as to two of the government’s affirmative defenses , arguing that the claims are valid under Section 101 and have not been impermissibly expanded under Section 305

. S ee Pl.’s § 101 Mot.; Pl.’s § 305 Summ. J. Mot. (“Pl.’s § 305 Mot.”) , ECF No. 173. The pa rties have completed briefing. See Def.’s § 101 Opp’n , ECF No. 177 ; Def.’s § 305 Opp’n , ECF No. 180 ; Pl.’s § 101 Reply, ECF No. 184 ; Pl.’s § 305 Reply, ECF No. 183

. Def.’s § 101 Reply, ECF No. 182; Def.’s §§ 102, 305, Reply, ECF No. 186

. The court held a hearing on January 24, 2022 , and supplemental briefs by the parties were filed on February 4 and 16, 2022. See Pl

. ’s Supp. Br. § 101, ECF No. 20 7 ; Def.’s Supp. Br. § 101, ECF No. 20 6 . The motions are re ady for disposition.

F or the reasons stated, the court grants defendant’s motion for summary judgment on the ground that it ha s established that claims 42 and 44 of the ’548 patent are invalid under 35 U.S.C. § 101 and denies plaintiff’s cross

- motions fo r partial summary judgment.

BACKGROUND 1

A. The ’548 Patent

The application for the ’548 patent was filed on January 24, 2002
, and the patent issued November 30, 2004. See ’ 548 patent

. The patent describes a “method, system and program product for processing returned mail.” Id. 2 Return Mail is the assignee of the ’548 patent. Id. The patent underwent ex parte reexamination, which resulted in the original thirty

- eight claims being cancelled and claims 39

- 63 being added. See Ex Parte R eexam ination C ertificate 6,826,548 (Jan. 4, 2011). 3 Claims 39

- 63 , which will be presented in greater detail as relevant below, do not mirror the original claims of the patent word for word. Compare ’548 patent
, with Ex Parte Reexamination Certificate 6,826,5 48 ; s ee also Def.’s §§ 102, 305 Mot. at 5

- 14.

The claimed invention aims to provide an “improved method of processing returned mail that overcomes the historical problems with prior art manual handling.” ’548 patent, col. 1, lines 55

- 57. Essentially, the patent addressed an automate d process that had previously required manual entry by humans. See Pl.’s § 101 Mot. at 9. The invention encodes information from the sender

, such as the name and address of the recipient, into a two

- dimensional barcode. See ’548

1 The following recitations do not constitute findings of fact by the court. Instead, the recited factual elements are taken from the relevant complaint and the parties’ briefs and attached appendices.

2 “ Returned mail ” is sometimes referred to as “undeliverable mail,” which means “mail that is not delivered due to an inaccurate or expired address for the intended recipient.” Pl.’s § 101 Mot. at 8.

3 References to the ’548 patent throughout this opinion include the Ex Parte Reexamination Certificate.3 patent, col. 2, lines 4

- 5 ; col. 2, line 66 to col. 3, line 15. If undeliverable, the mail is sent to a processing location where the barcode is scanned , and the encoded info rmation is decoded

. Id.

, col. 2, lines 14

- 20 ; col. 3

, lines 15

- 51. The computer system which stores the encoded information interacts with a database of stored corrected addresses via “any conventional telecommunications data line.” Id. , col. 3, line s 53

- 54 . Afterwards, d epending on what the sender elected, either a corrected address is provided if available or a notification is sent to the sender if they did not request a corrected address. See ’548 Reexamination Certificate, col. 2, lines 1

- 24.

For purposes of the present litigation, Return Mail only asserts claims 42 and 44, which

cover :

42. A method for processing a plurality of undeliverable mail items, comprising:

receiving from a sender a plurality of mail items, each including i) a written addr essee, and ii) encoded data indicating whether the sender wants a corrected address to be provided for the addressee;

identifying, as undeliverable mail items, mail items of the plurality of mail items that are returned subsequent to mailing as undeliverab le;

decoding the encoded data incorporated in at least one of the undeliverable mail items;

creating output data that includes a customer number of the sender and at least a portion of the decoded data;

determining if the sender wants a corrected address p rovided for intended recipients based on the decoded data;

if the sender wants a corrected address provided, electronically transferring to the sender information for the identified intended recipients that enable the sender to update the sender’s mailing address files; and

if the sender does not want a corrected address provided, posting return mail data records on a network that is accessible to the sender to enable the sender to access the records.

44. The method of claim 42, wherein the encoded data fur ther indicates a name and address of the intended recipient.

’548 Reexamination Certificate, col. 2, lines 1

- 24, 30

- 32.4 B. Procedural History

I n 2003, the parties began discussing whether the Postal Service would obtain a license for the ’548 patent. Am. Compl. ¶¶ 10

- 15 , ECF No. 128 . In 2006, the Postal Service introduced the OneCode ACS system, which creates a “[t]racking [b]arcode” for mail and allows a barcode reader to “determine data usually obtained from the mailpiece as keyed data entr y or [o]ptical [c]haracter [r]eader

. . . produced data.” Pl.’s § 101 Mot., Ex. 6 at 34. When the parties could not reach an agreement as to the licensing of the ’548 patent, Return Mail filed suit against the government in February 2011 , alleging that the OneCode ACS system infringes the patent

. See Compl., ECF No. 1.

The court issued its opinion on claim construction on October 4, 2013. See ECF No. 54

. In April of 2014, the Postal Service petitioned the Patent Trial and Appeal Board (“ the PTAB”) for a c overed b usiness m ethod (“CBM”) review of the ’548 patent. Th is case was stayed during that process. See Order of October 21, 2014, ECF No. 83. The PTAB invalidated all the challenged claims of the ’548 patent and reexamination certificate , determining that the claims

were patent

- ineligible under 35 U.S.C. § 101

. Specifically, the PTAB held that the claims “more likely than not” covered patent

- inelig ible subject matter. United States Postal Serv

. v. Return Mail, Inc. , No. CBM2014

- 00116 , 2014 WL 5339212 at * 13

- 15 (P.T.A.B October 16, 2014).

On appeal, the Court of Appeals for the Federal Circuit affirmed the PTAB’s invalidity decision after initially determining that the Postal Service had standing to petition for review by the PTAB. Return Mail, Inc. v. United States Postal Serv. , 868 F.3d 1350, 1366

- 6 9 (Fed. Cir. 2017), rev’d

, ___ U.S.

___ , 139 S. Ct. 1853 (2019). The Federal Circuit reasoned that claims 42 and 44 were abstract as they “simply recite existing business practice with the benefit of generic computing technology. ” Id. at 1368. In that respect , the Federal C ircuit determined that the “claims only recite routine, conventional activ ities such as identifying undeliverable mail items, decoding data on those mail items, and creating output data” and therefore did not find an inventive concept that transformed the abstract idea into a patent

- eligible application

. Id. at 1368

- 69.

The U nited States Supreme Court granted certiorari but only as to the issue of “whether a federal agency is a ‘person’ able to seek [CBM] review under the [Leahy

- Smith America Invents Act of 2011].” Return Mail , 139 S. Ct. at 185 9 . The case was reversed and r emanded because a federal agency was held to not be a “person” for the purposes of the A ct and could not seek CBM review. Id. at 1867

- 68. Of note is that the Supreme Court did not reach the substantive issue of whether the ’548 patent was invalid under Section 101. The Federal Circuit then remanded the case to the PTAB “with instructions to dismiss in light of the Supreme C ourt’s disposition.” Return Mail, Inc. v. U nited States Postal Serv. , 774 Fed. Appx. 684 (Fed. Cir. 2019).

With the PTAB related proceedings thus concluded, the stay in this case was lifted in September 2019

. S ee Order of September 5, 2019, ECF No. 108. Now in this court, d efendant renews its a rgument that the ’548 patent is invalid under Section 101 , as well as under Sections 102 and 305. See Def.’s § 101 Mot. at 26

- 27; Def.’s §§ 102, 305 Mot. at 5, 14. Contrastingly

, plaintiffs seek partial summary judgment rejecting t hese affirmative defenses o n the grounds that the patent is valid as an inventive concept

, that the government faile d to adequately support its5 contentions of invalidity

, and that the patent was not impermissibly broadened during the reexamination process. See Pl.’s § 101 Mot. at 1 , 27

- 28 ; Pl.’s § 305 Mot. at 2

.

STANDARDS FOR DECISION

A. 28 U.S.C. § 1498

Pursuant to 28 U.S.C. § 1498, the United States has waived sovereign immunity and granted this court exclusive jurisdiction to adjudicate patent infringement claims against the federal government “[w]henever an invention described in and covered by a patent of the United States is used or manufactured by or for the United States without license of the owner thereof or lawful right to use or manufacture the same.” S ee FastShip, L LC v. United States , 892 F.3d 1298, 130 7 n.1 (Fed. Cir. 2018), aff’g

, 122 Fed. Cl. 71, 78 (2015) (recognizing that Section 1498 grants this court jurisdiction over patent infringement claims against the United States); Hitkansut LLC v. United States , 130 F ed. Cl. 353, 367 (2017), aff’d , 721 Fed. Appx. 992 (Fed. Cir. 2018). Moreover, the statute provides that “the use or manufacture of an invention described in and covered by a patent of the United States by a contractor, a subcontractor, or any person, fir m, or corporation for the [g]overnment and with the authorization or consent of the [g]overnment, shall be construed as use or manufacture for the United States.” 28 U.S.C. § 1498(a). Such an unauthorized “use or manufacture of an invention” under Sectio n 1498(a) is analogous to a taking of property under the Fifth Amendment of the United States Constitution. See Motorola, Inc. v. United States , 729 F.2d 765, 768 (Fed. Cir. 1984). The government’s “taking” of a nonexclusive and compulsory license to any United States patent occurs “as of the instant the invention is first used or manufactured by [or for] the [g]overnment.” Decca Ltd. v. United States , 640 F.2d 1156, 1166 (Ct. Cl. 1980).

The government has waived sovereign immunity only for the compuls ory taking of a

non

- exclusive patent license, and the government’s liability under 28 U.S.C. § 1498 diverges from private liability under 35 U.S.C. § 271:

Government liability under Section 1498 arises from the “use or manufacture by or for the United States.” There is no mention of liability for a “sale” to the United States of a device covered by a patent. In contrast, with respect to private liability for patent infringement, the “sale” of a patented device is specifically defined in 35 U.S. C. § 271 as an act of infringement

. de Graffenried v. United States , 25 Cl. Ct. 209, 215 (1992) ( brackets omitted ); compare 28 U.S.C. § 1498
, with 35 U.S.C. § 271. 4

4 Section 271 (a) of Title 35 of the United S tates Code provides in relevant part:

whoever without authority makes, uses, offers to sell, or sells any patented invention, within the United S tates or imports into the United States any patented invention during the term of the patent therefor, infringes the patent.6 B. Available Defenses

U nder Section 1498(a), “[i]n the absence of a statutory restriction, any defense available to a private party is equally available to the United States.” Motorola , 729 F.2d at 769 (quoting 28 U.S.C. § 1498, Revisor’s Notes) (emphasis added). Thus, the invalidity defenses available to private parties involved in patent disputes under 35 U.S.C. § 282(b) are also available to the government. See, e.g.
, Messerschmidt v. United States , 29 Fed. Cl. 1, 17

- 40 (1993) (granting the government’s cross

- motion for summary judgment i n plaintiff’s patent infringement suit, having found plaintiff’s patent invalid on the basis of anticipation, indefiniteness, and obviousness), aff ’d , 14 F.3d 613 (Fed. Cir. 1993). Nonetheless, an issued patent is presumed valid, 35 U.S.C. § 282(a), and the government must prove invalidity by clear and convincing evidence, Microsoft Corp. v. i4i Ltd. P’ship , 564 U.S. 91, 95 (2011). This burden of p ersuasion remains on the government throughout a pending action

, see Stratoflex, Inc. v. Aeroquip Corp. , 713 F.2d 1530, 1534 (Fed. Cir. 1983) , including for summary judgment

, s ee Anderson v. Liberty Lobby

, 477 U.S. 242, 254 (1986) (holding that when decidi ng a motion for summary judgment, a court must bear in mind the applicable evidentiary burden under the substantive law).

C

. Summary Judgment

A grant of summary judgment is appropriate when the pleadings, affidavits, and evidentiary materials filed in a ca se demonstrate that “there is no genuine dispute as to any material fact and the movant is entitled to judgment as a matter of law.” Rule 56(a) of the Rules of the Court of Federal Claims (“RCFC”). A fact is material if it “might affect the outcome of th e suit under the governing law .” Anderson

, 477 U.S. at 248. A dispute is genuine if it might

“ return a verdict for the nonmoving party .” Id

. If “ the record taken as a whole [cannot] lead a rational trier of fact to find for the non

- moving party, there is no ‘genuine issue for trial,’” and summary judgment is appropriate. Matsushita Elec. Indus. Co. v. Zenith Radio Corp. , 475 U.S. 574, 587 (1986) ( quoting First Nat. Bank of Ariz. v. Cities Serv. Co. , 391 U.S. 253, 288 (1968)).

The burden of demonstrating the absence of any genuine dispute is on the moving party. See Celotex Corp. v. Catrett , 477 U.S. 317, 323 (1986). Accordingly, “the inferences t o be drawn from the underlying facts must be viewed in the light most favorable to the party opposing the motion.” Matsushita , 475 U.S. at 587

- 88 (alteration omitted ) (quoting United States v. Diebold, Inc. , 369 U.S. 654, 655 (1962)). T he nonmoving party may defeat summary judgment by presenting material facts of its own, more than “[m]ere denials or conclusory statements,” that indicate “an evidentiary conflict created on the record.” Barmag Barmer Maschinenfabrik AG v. Murata Mach., Ltd. , 731 F.2d 831, 836 (Fed. Cir. 1984). To establish “that a fact cannot be or is genuinely disputed,” a party must “cit[e] to particular parts of materials in the record, including depositions, documents, electronically stored information, affidavits or declarations, sti pulations (including those made for purposes of the motion only), admissions, interrogatory answers, or other materials. ” RCFC 56(c)(1)(A).

When both parties have moved for summary judgment, “the court must evaluate each party’s motion on its own merits , taking care in each instance to draw all reasonable inferences

35 U.S.C. § 271(a) (emphasis added).7 against the party whose motion is under consideration.” Mingus Constructors, Inc. v. United States , 812 F.2d 1387, 1391 (Fed. Cir. 1987). “The fact that both parties have moved for
summary judgment does not mean that the court must grant judgment as a matter of law for one side or the other.” Id . “To the extent there is a genuine issue of material fact, both motions must be denied.” Marriott Int’l Resorts, L.P. v. United States , 586 F.3d 962, 969 (Fed. Cir. 2009 )

.

ANALYSIS

The parties’ cross

- motions for summary judgment address whether the ’548 patent is ineligible under 35 U.S.C. § 101

. “Whoever invents or discovers any new and useful process, machine, manufacture, or composition of matter, or any new and useful improvement thereof, may obtain a patent therefor, subject to the conditions and requirements of this title.” 35 U.S.C. § 101. Pursuant to Supreme Court precedent construing 35 U.S.C. § 101, “[l]aws of nature, natural phenomena, and abstract ideas” are ineligible subject matters for patent protection. Alice Corp. Pty. Ltd. v. CLS Bank Int’l , 573 U.S. 208, 216 (2014) (quoting Assoc

. for Molecular Pathology v. Myriad Genetics, Inc. , 569 U.S. 576, 589

- 90 (2013)). 5 Under the Supreme Court’s
two

- part test to determine patent eligibility , a court must (1) “determine whether the claims at issue are directed to one of those patent

- ineligible concepts,” and (2) if so, “consider the elements of each claim both individually and ‘as an ordered combination’ to determine whether the additional elements ‘transform the nature of the claim’ into a patent

- eligible application.” Alice , 573 U.S. at 217 ( quoting Mayo Collaborative Servs. v . Prometheus Labs., Inc. , 566 U.S. 66, 78

- 79 (2012) ). The second step has been characterized as “a search for an ‘inventive concept’” that “amounts to significantly more than a patent on” the abstract idea. Id. ( quoting Mayo , 566 U.S. at 72

- 73 ); see also Synopsys, Inc. v. Mentor Graphics Corp. , 839 F.3d 1138, 1146 (Fed. Cir. 2016).

A

. Alice Step One

“The ‘abstract ideas’ category [of patent

- ineligible concepts] embodies ‘the longstanding rule that an idea of itself is not patentable.’” Alice , 573 U.S. at 218 (quoting Gottschalk v. Benson , 409 U.S. 63, 67 (1972)) (internal quotation marks and brackets omitted). At step one of the Alice analysis, the court inquir es “whether the claims ‘focus on a specific means or method

or are instead directed to a result or effect that itself is the abstract idea and merely invokes generic processes and machinery.” Secured Mail Sols. LLC v. Universal Wilde , Inc. , 873 F.3d 905, 909 (Fed. Cir. 2017) ( internal alterations omitted) (quoting McRO Inc. v. Bandai Namco Games America, Inc. , 837 F.3d 1299, 1314 (Fed. Cir. 2016) ).

While there is no “definitive rule t o determine what constitutes an abstract idea,” the Federal Circuit has “held claims ineligible as directed to an abstract idea when they merely collect electronic information, display information, or embody mental processes that could be performed by humans.” Thales Visionix Inc. v. United States , 850 F.3d 1343, 1346

- 47 (Fed. Cir. 2017 ) (quotation marks omitted)

. V arious abstract or conceptual subject matters have proven to

5 These three categories of ineligible subject m atter are judicially created. See Hitkansut LLC v. United States , 115 Fed. Cl. 719, 723 (2014), aff’d , 721 Fed. Appx. 992 (Fed. Cir. 2018).8 be patent

- ineligible abstract ideas under 35 U.S.C. § 101. See, e.g.
, Alice , 573 U.S. at 219 ( holding patent ineligible “a method of exchang ing financial obligations between two parties using a third

- party intermediary to mitigate settlement risk,” which embodied the abstract idea of intermediated settlement); Benson , 409 U.S. at 71

- 72 ( holding patent

- ineligible an algorithm for converting bin ary

- coded decimal numerals into pure binary form, as it was “in practical effect

. . . a patent on the algorithm itself”); Parker v. Flook , 437 U.S. 584, 594

- 95 (1978) ( holding patent

- ineligible a mathematical formula for computing “alarm limits” in a cata lytic conversion process). On the other hand, “s pecific improvements in technology, method, or material that make more useful concepts, ideas, or materials are patent eligible.” 3rd Eye Surveillance, LLC v. United States , 140 Fed. Cl. 39, 52 (2018) (citing Rapid Litig

. Mgmt. Ltd. v. CellzDirect, Inc.

, 827 F.3d 1042, 1048

- 49 (Fed. Cir. 2016) ( holding that a “new and useful laboratory technique for preserving [a type of liver cell]” was patent

- eligible subject matter); see also Hitkansut , 130 Fed. Cl. at 380 ( holding patent

- eligible a “new and more effici ent method for treating metal parts to change their physical properties”)

. Invoking computers or other technologies to make an abstract idea more efficient is neither a “ new and useful process, machine, manufacture, or composition of matter, ” n or a “ new and useful improvement thereof ” under 35 U.S.C. § 101. For example, Secured Mail Solutions concerned claims involving “methods whereby a sender affixe[d] an identifier on the outer surface of a mail object .

. . before the mail object [was] sent .

. . [
, and c]omputers and networks [were] used to communicate the information about the mail object’s contents and its sender after the mail object [was] delivered.” 873 F.3d at 907. Specifically, the Secured Mail Solutions patents involved affixing a barcode, a QR code, or a personalized URL to the outside of mail items. Id. The Court of Appeals held that the claims in that case were directed to an abstract idea because the claims were “not directed to a new barcode format, an improved method of generating or scanning barcodes, or similar improvements in computer functionality.” Id. at 910. The claims lacked any de scription of how the identifiers were generated or were different from conventional means of communicating mail item information, such as affixing a return address. Id. Moreover, the claims were “not limited by rules or steps that establish[ed] how the f ocus of the methods [was] achieved.” Id. at 911. Instead, they concerned the abstract idea of “using a marking affixed to the outside of a mail object to communicate information about the mail object.” Id

. ; see also Credit Acceptance Corp. v. Westlake S ers. , 859 F.3d 1044, 1054

- 1056 (Fed. Cir. 2017) (holding patent claims abstract where they involv ed electronic “communication between previously unconnected systems

— the dealer’s inventory database, a user credit information input terminal, and creditor und erwriting servers”

— because doing so merely automated the “previously manual processing of loan applications” and invoked computers “merely as a tool” instead of offering an improvement).

The government argues that Return Mail’s patent claims are abstract because “ they simply take known steps involving the abstract concept of processing returned mail, and then automate those known steps. ” Def.’s § 101 Mot. at 15. Defendant argues that

— unlike the patent claims in McRO , which proved patent

- eligible because they created a novel set of rules for performing lip synchronization in video games

, i d. at 14 (citing generally 837 F.3d 1299)

— t he ’548 patent claims recite “an ‘ existing business practice with the benefit of generic computing technology, ’ ” id. at 15 (quoting Return Mail , 868 F.3d at 1368), which “a human can mentally9 perform,” id. at 15

- 16 (citing CyberSource Corp. v. Retail Decisions, Inc. , 654 F.3d 1366, 1372 (Fed. Cir. 2011)).

Return Mail responds

— quoting the opinion of its expert, D r. Scott Nettles

— that the ’548 claims “ are directed to specific means or methods that improve the relevant technology and are a specific and concrete invention centered on the automated processing of undeliverable mail .” Pl.’s § 101 Opp’n at 8. Plaintiff further argues that its patent claims are not directed to an abstract concept because they concern “ a physical and technological process including mail pieces, sorters, scanners, encoded information and computers

, ” i d. , because the ordered steps included in the claims “were not previously used as an ordered combination,” id. at 9 , and because those steps were directed to “achiev[ing] a technological improvement in the processing of returned mail,” id. at 10.

As a threshold matter, the court addresses Ret urn Mail’s assertion that the Federal Circuit’s opinion in Return Mail , 868 F.3d at 1368

- 69

— and the PTAB’s underlying CBM decision

— are “null and void, as if they n ever occurred” because the Supreme Court reversed the Court of Appeals . Pl.’s § 101 Opp’n at 3. The court agrees that the Federal Circuit’s opinion no longer has preclusive effect on the parties, see O’Connor v. Donaldson , 422 U.S. 563, 577 n.12 (1975) (“Of necessity our decision vacating the judgment of the Court of Appeals deprives that court’ s opinion of precedential effect, leaving [the Supreme] Court’s opinion and judgment as the sole law of the case.”); however, the court disagrees with the contention that it may not consider the Federal Circuit’s opinion for its persuasive value, especiall y where the pertinent decision was reversed on a procedural question separate and distinct from the merits of the C ourt of A ppeal’s eligibility analysis, see Los Angeles C n ty

. v. Davis , 440 U.S. 625, 646 n.10 (1979) (Powell, J., dissenting) (“Although a decision vacating a judgment necessarily prevents the opinion of the lower court from being the law of the case, the expressions of the court below on the merits, if not reversed, will continue to have precedential weight and, until contrary a uthority is decided, are likely to be viewed as persuasive authority.” (internal citations omitted)).

Return Mail further argues that the court is prevented from considering the Federal Circuit’s opinion because of the different evidentiary standards of proof at the PTAB and this
court

. See Pl.’s § 101 Opp’n at 4. Regardless of debates over the extent to which extrinsic evidence may be appropriate in the Section 101 eligibility analysis, see CardioNet, LLC v. InfoBionic, Inc. , 955 F.3d 1358, 1374

- 79 (Fe d. Cir. 2020) (Dyk, J., concurring in part and dissenting in part), it is undisputed that “ Alice step one presents a legal question that can be answered based on the intrinsic evidence ,” id. at 1372 (Stoll, J.) ; see also In re Comiskey , 554 F.3d 967, 975 ( Fed. Cir. 2009) (“It is well

- established that” invalidity under Section 101 “is a question of law.” (quoting AT & T Corp. v. Excel Commc’ns, Inc. , 172 F.3d 1352, 1355 (Fed. Cir. 1999)) ) . The legal question of invalidity, at Alice step one, is therefore no t affected by the different standards of proof applicable to factual issues. S ee Microsoft , 564 U.S. at 114 (Breyer, J., concurring) (explaining that “the evidentiary standard of proof [in a Section 101 invalidity analysis] applies to questions of fact and not to questions of law”). Moreover, t o hold that PTAB decisions may not apply in trial courts due to differing standards of proof would render PTAB invalidity decision s meaningless because a disappointed patent holder would automatically have a second chance to litigate the validity question before the trial court. This cannot be

, nor has it been

, the case.10 The court reiterates that it agrees with Return Mail to the extent that the Supr eme Court’s reversal deprived the Federal Circuit’s and the PTAB’s decision s of preclusive effect. It is not true, however, that the court is therefore barred from considering those decisions

. The court therefore concludes that the Federal Circuit’s reas oning in Return Mail

, 868 F.3d at 1368

- 69 is worthy of consideration here. 6

The text of the ’548 patent claims reveals a series of steps that describe an abstract idea

, namely, processing returned mail and relaying mailing address data. “ Claim 42 recites

‘ receiving from a sender a plurality of mail items, ’ ‘ identifying undeliverable mail items, ’

‘ decoding encoded data, ’ ‘ creating output data, ’ and ‘ determining if the sender wants a corrected address. ’” Return Mail , 868 F.3d at 1368 (quota tion marks and ellipses omitted). In considering the same ’548 patent claims at issue here , the Federal Circuit held that “[t] hese steps are analogous to the steps of ‘ collecting data, ’ ‘ recognizing certain data within the collected data set, ’ and ‘ storin g that recognized data in memory, ’ which [it] found to be abstract ” in another

case. Id. (quoting Content Extraction & Transmission LLC v. Wells Fargo Bank, Nat ’ l Ass ’ n , 776 F.3d 1343, 1347 (Fed. Cir. 2014), cert. denied

, 577 U.S. 914 (2015) ). This abstractness is evident whether the court considers the claim limitation s individually or as an ordered combination.

Additionally, the ’548 patent claims are not directed to an improvement on the abstract idea of processing returned mail and relaying ad dress data. T hey do not offer a practitioner of the art something that had been hitherto unavailable, like the claims for a new way of performing lip synchronization in video games in McRO

. Instead

, like the claims in Secured Mail Solutions and Credit Acceptance Corp.
, the ’548 claims restate a process that was historically performed manually by people and invokes computers merely as a tool to automate that previously manual
process

. See ’548 Patent, col. 1, lines 39

- 47. Contrary to Return Mail’s conten tion that claims 42 and 44 are directed to a specific improvement of processing returned mail and relaying address data, the texts of those claims do not describe any such improvement individually or as an ordered combination

. Instead, they recite the con ventional, historically manual processing of returned mail and updating addresses while invoking computers “merely as a tool.” Credit Acceptance Corp.
, 859 F.3d at 1055.

6 Return Mail also argues that the PTAB’s and the Federal Circuit’s opinions are inapplicable to the present mot ions because the PTAB used a different claim construction standard than would be used at the trial court. Pl.’s § 101 Opp’n at 4 . Prior to November 2018, the PTAB applied the “broadest reasonable interpretation” standard to claim construction in various proceedings, including CBM reviews ; however, in a final agency rulemaking, the Board adopted the same claim construction standard used in trial courts as set out in Phillips v. AWH Corp. , 415 F.3d 1303, 1312 (Fed. Cir. 2005). See Changes to the Claim Construction Standard for Interpreting Claims in Trial Proceedings Before the Patent Trial and Appeal Board, 83 Fed. Reg. 51,340 (Oct. 11, 2018) (to be codified at 37 C.F.R. pt. 42) . This rulemaking was made to apply only to covered PTAB proceedings filed on or after November 13, 2018. Id. The CBM review at issue in this case was filed before the effective date of the final PTAB rulemaking. See Return Mail, Inc. , No. CBM2014

- 00116

.11 While plaintiff argues that tangible items, such as computers and scanners, remove claims 42 and 44 from the realm of abstract ideas, see Pl.’s § 101 Opp’n at 8, such tangible instruments do not appear in claims 42 and 44

, see Return Mail , 868 F.3d at 1369 (“I n addition, Return Mail points to hardware, such [as] ‘ a mail sorter, optical scanner, databases, application servers, and the mail itself ’ to argue that claims 42

– 44 result in an ‘ improvement to an existing technological
process. ’ However, those limitati ons do not appear in the subject claims; instead, the claims focus only on encoding and decoding certain information and placing that information over a network. ’” (internal citations omitted))

. Whatever may be said for other claims in the ’548 patent tha t Return Mail no longer asserts, 7 claims 42 and 44 are lacking in any references beyond the abstract idea of processing undeliverable mail items

. Moreover, even if claims 42 and 44 described a “ physical and technological process including mail pieces, so rters, scanners, encoded information and computers ,” Pl.’s § 101 Opp’n at 8, this would amount to an abstract idea “for which computers [and these other pieces of technology] are invoked merely as a tool.” Credit Acceptanc e Corp. , 859 F.3d at 1055

. As wi th Secured Mail Solutions

, these implements would render the abstract idea of relaying address information on returned mail items more efficient but would not render that idea “les s abstract

. ” 873 F.3d at 910

. The court therefore holds that the asserted ’548 patent claims are dire cted to an abstract idea.

B

. Alice Step Tw o

That the ’548 claims are directed to an abstract idea does not end the analysis, and the court considers whether those claims embody an inventive application of processing mail items and updating a return addre ss that is “significantly more” than just that abstract idea. See Alice

, 573 U.S. at 217

- 18

. To prevail at step two of Alice , the ’548 claims “ must involve more than performance of ‘ well

- understood, routine, and conventional activities previously known to the industry. ’” Content Extraction , 776 F.3d at 1347

- 48 (brackets omitted) (quoting Alice , 573 U.S. at 225). Whether the ’548 claims embody a patent

- eligible application of an abstract idea is a question of law; however, whether the c laims at issue involve more than well

- understood, routine, and conventional activities is a fact ual question. See Berkheimer v. HP Inc. , 881 F.3d 1360, 1368 (Fed. Cir. 2018). “ When there is no genuine issue of material fact regarding whether the claim el ement or claimed combination is well

- understood, routine, [or] conventional to a skilled artisan in the relevant field, this issue can be decided on summary judgment as a matter of law. ” Id. In the context of computer

- based claims, t he Court in Alice exp lained :
In Benson,

. . . we considered a patent that claimed an algorithm implemented on “a general

- purpose digital computer.” Because the algorithm was an abstract idea, the claim had to supply a “‘new and useful’” application of the idea in order to be patent eligible. But the computer implementation did not supply the necessary inventive concept; the process could be “carried out in existing computers long in use.”

573 U.S. at 222 (internal citations omitted)

. The Court continued

,

7 “ The Court: Plaintiff’s claims .

. . focus specifically and solely .

. . on claims 42 and 44 of the patent. Is that correct? [ Counsel for Return Mail ] : Yes, Your Honor.” See Hr’g Tr. 11:6

- 11 (Jan. 21, 2021).12 In Diehr , by contrast, we held that a computer

- implemented process for curing rubber was patent eligible, but not because it involved a computer. The claim employed a “well

- known” mathematical equation, but it used that equation in a process designed to solve a t echnological problem in “conventional industry practice.” The invention in Diehr used a “thermocouple” to record constant temperature measurements inside the rubber mold

— something “the industry had not been able to obtain.”

Id. at 223 ( brackets and internal citations omitted)

. Similarly , the abstract idea of processing undeliverable mail items and providing an updated address is not patent eligible on its own . Nevertheless, Return Mail may prevail by demonstrating a genuine issue of m aterial fact as to whether its claimed method goes beyond generically applying the idea on computers , as in Benson
, and instead applies it in an inventive way to provide some improvement or novel solution as in Diehr

. See Hitkansut , 115 Fed. Cl. at 732 (“I n Diehr , the underlying mathematical equation that determined at what point in the process a rubber mold should be opened was not patent eligible, but a method for applying that equation more accurately and effectively was eligible

. ” (citing Diehr , 450 U.S. at 187 ) ) ; see also

, e.g. , Thales Visionix , 850 F.3d at 1349 (“ Just as claims directed to a new and useful technique for defining a database that runs on general

- purpose computer equipment are patent eligible, so too

are claims directed to a new and useful technique for using sensors to more efficiently track an object on a moving platform. ” (internal citation omitted)).

The government contends that the ’548 patent claims fail to provide an “inventive concept” under Alic e step two because they “ tak [e] known and conventional business practices ( e.g. , steps for sorting returned mail) and generically apply [] those practices to computers .” Def.’s § 101 Mot. at 16

- 17

. Defendant specifically argues that Return Mail ’ s claims l ack limitations directed to an inventive concept : e.g. , that according to plaintiff’s expert, “elements of the claims were routine, conventional, and well

- understood” at the time of Return Mail’s application, id. at 18 (citing Return Mail’s expert, Dr. Sco tt Nettles), that encoding and decoding data based on whether a sender wants an updated address “amount to a basic logic determination” and do not “transform the abstract idea into patent

- eligible subject

- matter,” id. (quoting Return Mail , 868 F.3d at 1368

- 69), that Return Mail’s invocation of computers fails to provide the inventive concept because the ’548 patent says “any kind of computer system” would suffice, id. at 20 (brackets omitted) (citing ’548 P atent, col. 7, lin e 7), and that other tangible technolog ies that Return Mail identifies in its argument are not found in the disputed claims 42 and 44, id.

Return Mail concedes that some of the limitations of claim 42 were known at the time of the ’548 patent application; however, it contends th at none of them were well

- known, routine, and conventional. Pl.’s § 101 Opp’n at 1 2

- 15. Plaintiff further avers that limiting the claims to mail items after an unsuccessful delivery attempt was unknown at the time, id. at 13, that the encoding and decodi ng limitation was directed to electronic means that could not have been human ly performed, id. at 14

- 15
, and that the use of computers required some customization and programming to implement the ’548 claims, id. at 17

. Return Mail also argues that the13 government’s reliance on analogies to Federal Circuit opinions “is not evidence” sufficient to support its summary judgment motion. Id. at 15

- 16

. Again, Return Mail’s “ claims only recite routine, conventional activities such as identifying undeliverable mail items, decoding data on those mail items, and creating output data.” Return Mail , 868 F.3d at 1368. Similarly, “the limitations [of] reci ting particular types of encoded data or particular uses of that data once decoded, such as sending the data or making it available to the sender, depending on the sender’s preferences” do not re present a new or useful application. Id. at 1368

- 69. Unlike Diehr ’s novel application of a mathematical equation to solve a specific problem and obtain measurements that practitioners of the art “ ha d not been able to obtain ,” Alice

, 573 U.S. at 223 (brackets omitted) (citing Diehr, 450 U.S. at 178), the language of the ’548 patent claims provide for the conventional processing of undeliverable mail items but on a computer. Instead

, as with Benson , the ’548 patent claims’ reliance on “ any kind of computer system,” ’548 patent, col. 7, line 7 , fails “to supply a ‘new and useful’ application of the [abstract] idea” of sorting undeliverable mail items and providing an updated mailing address

. Id. at 222 (citing Benson
, 409 U.S. at 67 )

.

The limitations of the ’548 patent claims were well

- known and conventional at the time of the patent application , including the purportedly inventive concept of updating a mailing address after a failed delivery attempt

. See ’548 patent, col. 1, lines 20

- 60 (describing the “historical[]” and “not uncommon” prac tice of researching and updating mailing addresses of “mail that is returned to sender”). To restate known, conventional steps

, but on a computer

, is insufficient to transform the claims

— otherwise directed to an abstract idea

— into an inventive application. See, e.g.
, Alice , 573 U.S. at 225 (holding that claims failed to “do more than simply instruct the practitioner to implement the abstract idea

. . . on a generic computer ” where “ each step of the process [was] ‘ purely conven tional ’” individually and “as an ordered combination” ( brackets omitted) ) ; Mor t g age Grader, Inc. v. First Choice Loan Servs. Inc. , 811 F.3d 1314, 1324

- 25 (Fed. Cir. 2016) ( holding no inventive concept where “ the claims ‘ add ’ only generic computer components such as an ‘ interface, ’ ‘ network, ’ and ‘ database ’” because “[t] hese generic computer components do not satisfy the inventive concept requirement”) ; Intellectual Ventures I LLC v. Capital One Bank (USA) , 792 F.3d 1363, 1367 (Fed. Cir. 2015) (“Nor, in addre ssing the second step of Alice, does claiming the improved speed or efficiency inherent with applying the abstract idea on a computer provide a sufficient inventive concept.”) ; Bancorp Servs., L

. L

. C

. v. Sun Life Assurance Co. of Can. , 687 F.3d 1266, 1278 (Fed. Cir. 2012) (“[T]he fact that the required calculations could be performed more efficiently via a computer does not materially alter the patent eligibility of the claimed subject matter.”)

.

Moreo ver, Return Mail’s assertion s that the ’548 claims are limited to electronic encoding and decoding or customized computers and programming are unavailing. It is not enough to “‘attempt to limit the use’ of the abstract .

. . idea ‘to a particular technolo gical environment

. ’” buySafe, Inc. v. Google, Inc. , 765 F.3d 1350, 1355 (Fed. Cir. 2014) (citing Alice 573 U.S. at 22

- 24) ( brackets and additional citations omitted). Because the ’548 patent claims are directed to the abstract idea of processing undelive rable mail and providing an updated address , and because there is no genuine dispute of material fact that those claims fail to offer any kind of new application of that idea, the court holds that the disputed patent is patent

-14 ineligible under 35 U.S.C. § 101. Defendant’s remaining grounds for summary judgment under Sections 102 and 305 are moot.

CONCLUSION

For the foregoing reasons, defendant’s Section 101 motion for summary judgment is GRANTED and the plaintiff’s cross

- motions for partial summary judgment are DENIED

. The remaining summary judgment motions are DENIED AS MOOT.

The Clerk is directed to enter judgment for defendant.

No costs.

It is so ORDERED

.

s/ Charles F. Lettow Charles F. Lettow Senior Judge