Source: s3://data.kl3m.ai/documents/govinfo/USCOURTS/USCOURTS-caed-2_18-cv-00969/USCOURTS-caed-2_18-cv-00969-4/pdf.json

Nature of Suit Code: 190
Nature of Suit: Other Contract Actions
Cause of Action: 28:1332 Diversity-Breach of Contract

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UNITED STATES DISTRICT COURT 

FOR THE EASTERN DISTRICT OF CALIFORNIA 

RICHARD A. LEINES, 

Plaintiff, 

v. 

HOMELAND VINYL PRODUCTS, INC., 

Defendant. 

No. 2:18-cv-00969-KJM-DB 

ORDER 

Plaintiff Richard Leines sues defendant Homeland Vinyl, Inc. (“Homeland”), 

alleging, among other things, Homeland’s “Gorilla Lock” product infringes a patent owned and 

developed by Leines. On September 30, 2019, the court conducted a claim construction hearing in 

accordance with Markman v. Westview Instruments, Inc., 517 U.S. 370 (1996). Through this order, 

based on the hearing and on the record before it, the court construes the disputed words and phrases 

found in Claim 11 of Leines’ patent at issue, U.S. Patent No. 594,961 (“the ‘961 Patent”). 

I. BACKGROUND 

Leines and Homeland entered into a licensing agreement whereby Homeland could 

manufacture and sell certain products, called “Gorilla Lock” deck products, that are purportedly 

based on an invention Leines patented. Compl. ¶ 5. The patent at issue in the license and in the 

complaint, Patent No. 6,594,961, is entitled “Deck Plank Extrusion and Retaining Clip,” id. ¶ 6, 

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and describes a type of “decking board” designed to “allow simple installation and removal,” when 

constructing a deck or similar surface, Pl.’s Br., ECF No. 35, at 5. 

Claim 11 of the ‘961 Patent (“Claim 11”), at issue in the dispute presently before 

the court, states: 

 11. A deck board which can be attached to an underlying surface 

easily in one downward motion and with a simple clip, comprising: 

a deck board of rigid material having a width and a length, the width 

 being substantially less than the length, said deck board 

 having a pair of opposite edges, said opposite edges having a 

 separation that defines said width, 

 said deck board having an upper surface and an under side, 

 said under side of said deck board having a bottom surface which is 

 substantially parallel to said upper surface and an elongated 

 recess in a portion of said bottom surface, said elongated 

 recess extending along the length of said deck board, 

 said elongated recess having a pair of sidewalls which directly face 

 each other and which are spaced apart by a predetermined 

 spacing, a bottom portion of each of said pair of sidewalls of said elongated 

 recess tapering up and inward toward the opposite sidewall 

 to a ledge which faces upward, so that said sidewalls contain 

 a respective pair of upwardly facing ledges, each ledge 

 extending from and being spaced up from the bottom of a 

 respective sidewall by a predetermined distance, said ledges extending into said recess from said respective sidewalls 

 toward each other, whereby said deck board can be connected smoothly and securely to 

 a clip having a pair of outwardly facing flanges while 

 maintaining a uniform alignment of said elongated deck 

 board over said surface, yet can be readily disconnected, and 

 such that said deck board can be trimmed in width at 

 said edges of said deck board without disturbing the 

 attachment of said deck board to said clip. 

Compl., Ex B (‘961 Patent), ECF No. 1-2, at 15 (emphasis added to highlight disputed terms).

In accordance with Rule 4 of the Northern District’s Patent Local Rules,1

 Leines has 

submitted an opening brief on claim construction. See Pl.’s Br. Defendants submitted a responsive 

claim construction brief, Defs.’ Resp., ECF No. 36, and Leines replied, Reply, ECF No. 37. After 

hearing oral argument on the matter, the court addresses the construction of the disputed words and 

phrases found in Claim 11 of the ‘961 Patent below. 

 

1

 The court has adopted the Northern District’s Patent Local Rules to govern the relevant parts of 

this case. See ECF No. 24 at 2. 

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II. LEGAL STANDARD 

The court construes patent claims as a matter of law reserved for the court to decide, 

Markman, 517 U.S. at 372, based on the relevant intrinsic and extrinsic evidence, Phillips v. AWH 

Corp., 415 F.3d 1303, 1313–14 (Fed. Cir. 2005) (en banc). “Ultimately, the interpretation to be 

given a term can only be determined and confirmed with a full understanding of what the inventors 

actually invented and intended to envelop with the claim.” Phillips, 415 F.3d at 1316 (internal 

quotation marks and citation omitted). Accordingly, a claim should be construed in a manner that 

“stays true to the claim language and most naturally aligns with the patent’s description of the 

invention.” Id. 

In construing disputed terms, a court looks first to the claims themselves, for “[i]t is 

a ‘bedrock principle’ of patent law that ‘the claims of a patent define the invention to which the 

patentee is entitled the right to exclude.’” Id. at 1312 (quoting Innova/Pure Water, Inc. v. Safari 

Water Filtration Sys., Inc., 381 F.3d 1111, 1115 (Fed. Cir. 2004)). Generally, the words of a claim 

should be given their “ordinary and customary meaning,” which is “the meaning that the term[s] 

would have to a person of ordinary skill in the art in question at the time of the invention.” Id. at 

1312–13. A “person of ordinary skill is a hypothetical person who is presumed to be aware of all 

the pertinent prior art.” Custom Accessories, Inc. v. Jeffrey-Allan Indus., Inc., 807 F.2d 955, 962 

(Fed. Cir. 1986) (footnote omitted). In some instances, the ordinary meaning to a person of skill in 

the art is clear and claim construction may involve “little more than the application of the widely 

accepted meaning of commonly understood words.” Phillips, 415 F.3d at 1314. 

Furthermore, “[w]here commonly understood words are accorded their ordinary 

meaning in the patent, the court need not construe them for the jury.” Medversant Techs., L.L.C. 

v. Morrisey Assocs., Inc., No. CV 09-05031 MMM FFMX, 2011 WL 9527718, at *19 (C.D. Cal. 

Aug. 5, 2011) (citing, inter alia, Biotec Biologische Naturverpackungen GmbH & Co. KG v. 

Biocorp, Inc., 249 F.3d 1341, 1349 (Fed. Cir. 2001) (holding district court did not err when it 

declined to construe “melting” because term was used in patent in its ordinary meaning and did not 

otherwise require construction)). 

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In many cases, however, the meaning of a term to a person skilled in the art will not 

be readily apparent, and a court must look to other sources to interpret the term’s meaning. See id. 

at 4. Under these circumstances, a court should consider the context in which the term is used in 

an asserted claim or in related claims and bear in mind that “the person of ordinary skill in the art 

is deemed to read the claim term not only in the context of the particular claim in which the disputed 

term appears, but in the context of the entire patent, including the specification,” Phillips, 415 F.3d 

at 1313, as well as the prosecution history, which consists of the complete record of proceedings 

before the U.S. Patent and Trademark Office (“PTO”) and includes the cited prior art references. 

See Markman v. Westview Instruments, Inc., 52 F.3d 967, 980 (Fed. Cir. 1995) (en banc), aff’d, 517 

U.S. 370 (1996); Advanced Steel Recovery, LLC v. X-Body Equip., Inc., No. 

216CV00148KJMEFB, 2019 WL 3253782, at *3 (E.D. Cal. July 19, 2019). A court is also 

authorized to consider extrinsic evidence in construing claims, such as “expert and inventor 

testimony, dictionaries, and learned treatises.” Markman, 52 F.3d at 980 Although a court may 

consider evidence extrinsic to the patent and prosecution history, such evidence is considered “less 

significant than the intrinsic record” and “less reliable than the patent and its prosecution history in 

determining how to read claim terms.” Id. at 1317–18 (internal quotation marks and citations 

omitted). 

III. DISCUSSION 

A. Constructions on Which Parties Agree 

As provided by Patent Local Rule 4.3(c), the parties have identified the following 

terms and constructions upon which they agree: 

Claim Term Construction 

“a bottom portion of each of said pair 

of sidewalls” 

Plain and ordinary meaning. 

“tapering up and inward toward the 

opposite sidewall to a ledge which 

faces upward” 

Plain and ordinary meaning. 

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Joint Claim Construction Statement, ECF No. 32, at 1. The court accepts these constructions and 

construes the above claim terms as described. 

B. Claim 11’s Preamble & “Simple Clip” 

Defendant originally contended the preamble of Claim 11 is limiting, and therefore 

the term “simple clip,” which appears in the preamble, requires construction. Def.’s Resp. at 11. 

At hearing, defendant conceded the preamble is not limiting as to the term “simple clip,” and no 

construction is necessary. The court thus does not construe the term “simple clip.” Defendant’s 

concession did not extend to the remainder of the preamble, however, which defendant addresses 

in its briefing regarding indefiniteness. Def.’s Resp. at 19–20; see also TomTom, Inc. v. Adolph, 

790 F.3d 1315, 1323–24 (Fed. Cir. 2015) (holding district court “erred in determining that it had to 

construe the entire preamble if it construed a portion of it” and finding certain language in preamble 

was not limiting, as not providing an antecedent basis for any claims but rather stating a “purpose 

or intended use”). 

C. Other Disputed Terms 

1. “Rigid material” 

Plaintiff asserts the term “rigid material” does not require construction and should 

simply be given its “plain and ordinary meaning,” which it describes as 

“material that is rigid.” Pl.’s Br. at 8–9; Pl.’s Reply at 10 (insisting the phrase needs no 

construction. Defendant argues the term needs to be construed, but agrees that “a material that is 

rigid” is an appropriate construction. Def.’s Resp. at 13. At hearing, the parties agreed that “rigid 

material” and “a material that is rigid” mean essentially the same thing, with words “simply 

rearrange[d],” Pl.’s Reply at 10, but defendant maintained its proposed construction was slightly 

clearer than the term in the patent. On review of the patent specification, the court discerns no 

special meaning to the term “rigid material,” but finds the construction “a material that is rigid” is 

a proper construction of the term, as it is slightly clearer than “rigid material.” See Delta Faucet 

Co. v. Kohler Co., No. 117CV01222SEBDML, 2018 WL 2865467, at *5 (S.D. Ind. June 11, 2018) 

(finding no construction of term “releasably” necessary, but adopting one party’s “gloss” on the 

term, as it is “somewhat clearer and thus more readily understood by a jury without change in 

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meaning than is the term itself”); Sun Microsystems, Inc. v. Network Appliance, Inc., 591 F. Supp. 

2d 1069, 1096 (N.D. Cal. 2008) (finding no substantive difference between two proposed 

constructions of a term, court determined that one construction “is slightly clearer, and therefore 

more helpful for the jury”). 

2. “A pair of sidewalls which directly face each other” 

Claim Term Leines’ Proposed 

Construction 

Homeland’s Compromise 

Construction 

“A pair of sidewalls 

which directly face 

each other” 

No construction necessary; 

plain and ordinary meaning. 

“Any pair of sidewalls 

which directly face 

each other and define 

the boundary of an 

elongated recess in a 

deck board” 

 Leines maintains the disputed term, “a pair of sidewalls which directly face each 

other” needs no construction, because it is “simple and clear.” Pl.’s Br. at 12–14. Homeland 

disagrees, and argues the phrase is unclear and should be construed as “any pair of sidewalls which 

directly face each other and define the boundary of an elongated recess in a deck board.” Def.’s 

Resp. at 14–15. 

Inherent in the parties’ dispute over the meaning of the phrase “a pair of sidewalls 

which directly face each other” is a dispute over the term “sidewall.” Homeland initially proposed 

the construction “any panel or partition,” but, in its responsive brief, agrees to incorporate the term 

“sidewall” as is, insofar as it means “a wall forming the side of something.” Def.’s Resp. at 14 & 

n.3 (citing https://www.merriam-webster.com/dictionary/sidewall). The court finds “a wall 

forming the side of something” is an appropriate construction, as it encompasses the term’s plain 

and ordinary meaning and appears to comport with the term’s meaning as it is used in the patent. 

To clarify, the court is not relying on the dictionary definition of “sidewall” provided by Homeland 

to identify a new meaning of the term, but simply adopts it as articulating the ordinary meaning of 

the term. See CANVS Corp. v. United States, 126 Fed. Cl. 106, 116 (2016) (“[T]he ordinary 

meaning of words as gleaned from the intrinsic record should not be set aside for 

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a dictionary definition that plainly contradicts the use of the words in the patent.”) (citing Phillips 

v. AWH Corp., 415 F.3d 1303, 1322 (Fed. Cir. 2005) (“[Judges] may [] rely 

on dictionary definitions when construing claim terms, so long as the dictionary definition does not 

contradict any definition found in or ascertained by a reading of the patent documents.”)). As for 

the phrase as a whole, Homeland argues it requires construction because “it is unclear how exactly 

the sidewalls relate to each other, what spacing exists, and when that spacing is determined.” Def.’s 

Resp. at 6. In an effort to clarify, Homeland’s proposed construction appends “. . . and define the 

boundary of an elongated recess in a deck board” to the phrase “any pair of sidewalls which directly 

face each other.” Id. at 14. But Homeland does not provide the court with anything in the claim, 

the specification, or the prosecution history that suggests the phrase has any special meaning 

beyond its ordinary, everyday meaning. 

Leines opposes Homeland’s proposed construction, arguing that it “is not specific 

as to which recess is being defined,” and is inaccurate because the “claimed elongated recess is 

defined not only by the sidewalls but by the horizontal support member.” Pl.’s Br. at 14. Further, 

Leines argues that the construction cannot comprise “any two” panels, partitions, or sidewalls, 

because the claim refers only to two sidewalls that “face each other,” thereby rendering them “a 

pair of sidewalls.” Id. “Any two” panels, partitions, or sidewalls “improperly broaden[s] the term.” 

Id. Leines does not appear to argue that Homeland’s proposed phrase “and define the boundary of 

an elongated recess in a deck board” is inaccurate, but argues only that it is unnecessary, because 

the meaning of the term is clear without it. Pl.’s Br. at 14. 

Leines further argues the “plain meaning of these terms is confirmed when viewed 

in light of the specification.” In particular, Leines points to Figure 2 which depicts the “sidewalls” 

spaced apart and directly facing each other, reproduced below first in its original form, and then 

with added embellishments from plaintiff’s brief emphasizing the disputed claim terms. ‘961 

Patent, at 4 Fig. 2; Pl.’s Br. at 13. “In conjunction with the horizontal stabilizing web 40 (which 

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has no facing wall),” Leines explains, Figure 2 shows the sidewalls “define the elongated recess’s 

predetermined spacing.” Pl.’s Br. at 13. 

‘961 Patent, at 4 Fig. 2 (left image); Pl.’s Br. at 13 (right image). 

Leines also argues that the prosecution history of the ‘691 Patent is “consistent with 

both the claim language and specification and evidences no intent on the part of the patentee to 

impart a special meaning to these terms.” Pl.’s Br. at 13–14 (citing Benisek Decl, Ex. B, 5.28.2002 

Am. A at RL000108-11 (“The deck-plank holding portion comprises of flanges that are spaced up 

from the base and that extend away from each other in opposite directions. The plank has a bottom 

elongated recess with a pair of upwardly facing ledges that mate with the flanges of the clip when 

the plank is pushed down over the clip.”)). 

Given the claim language and the specification, the court finds the meaning of the 

phrase “a pair of sidewalls which directly face each other” need not be construed, because it would 

be understood by a person of ordinary skill in the art in its “ordinary, everyday sense” especially 

with the additional clarification provided by Figure 2 in the patent, ‘961 Patent at 4 fig. 2. 

Collegenet, Inc. v. XAP Corp., No. CV-03-1229-HU, 2004 WL 2429843, at *14 (D. Or. Oct. 29, 

2004) (construction not necessary where a claim term appears to be used in its ordinary sense, not 

in any technical or scientific sense). As one district court has explained: “While claim terms ‘must 

be construed as they would be understood by a person of ordinary skill in the art to which the 

invention pertains,’ and thus, ‘[w]hat the claim terms would mean to laymen is irrelevant[,]’ if a 

person of ordinary skill in the art would understand the term in its ordinary, everyday sense, there 

is no need to construe the term.” Id. (quoting Searfoss v. Pioneer Consol. Corp., 374 F.3d 1142, 

1149 (Fed. Cir. 2004)). The phrase “a pair of sidewalls which directly face each other” can be 

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understood in its ordinary, everyday sense. Homeland’s proposed construction adds unnecessary 

embellishments that do not add clarity and run counter to the ordinary meaning of the term. 

Therefore, the phrase needs no construction. 

3. “Spaced apart by a predetermined spacing” & “Being spaced up from the 

 bottom of a respective sidewall by a predetermined distance” 

Claim Term Leines’ Proposed 

Construction 

Homeland’s Compromise 

Construction 

“Each ledge . . . 

being spaced up 

from the bottom of 

a respective 

sidewall by a 

predetermined 

distance” 

No construction necessary; 

plain and ordinary meaning. 

“Any spacing between the ledge and 

the bottom of the sidewall determined 

before manufacturing.” 

“spaced apart by a 

predetermined 

spacing.” 

No construction necessary; 

plain and ordinary meaning.

“Any spacing that exists between the 

sidewalls that is determined before 

manufacturing.” 

The parties also dispute whether the claim terms “Each ledge . . . being spaced up 

from the bottom of a respective sidewall by a predetermined distance” and “spaced apart by a 

predetermined spacing” require construction. As signaled by Homeland’s compromise 

construction and related briefing, the crux of the dispute is over the word “predetermined” as used 

in both of the aforementioned claim terms. Homeland argues the word should be construed to mean 

“determined before manufacturing,” whereas Leines maintains the word requires no construction, 

as the meaning is obvious. See Pl.’s Reply at 11. Leines also argues the addition of the word 

“manufacturing” is inaccurate, because “not all deck boards within the scope of the claim are 

‘manufactured.’” Id. For example, the claimed deck board may be made of wood, and “manually 

routed by the carpenter to meet the limitations of the claim just prior to installation as decking.” 2 

Id. (emphasis added). 

 

2

 As used here, “routed” means to have gouged a furrow into a wooden surface, which is 

distinct from “manufacture,” which can mean “to make from raw materials by hand or by 

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Here, the court agrees with Homeland that, in this context, the term “predetermined” 

implies that the spacing is determined before some event. At hearing, the court suggested an 

alternative construction, which the parties discussed and generally agreed upon: “Any spacing 

between the ledge and the bottom of the sidewall determined before installation,” rather than before 

manufacturing. Leines pointed out, however, that the spacing of the sidewalls may be modified 

after initial installation of the product. Taking this observation into account, the court finds the 

terms are appropriately construed, respectively, as: “Any spacing between the ledge and the bottom 

of the sidewall determined before installation or re-installation,” and “Any spacing that exists 

between the sidewalls that is determined before installation or re-installation.” 

D. Homeland’s Indefiniteness Arguments 

1. Addressing Indefiniteness at the Claim Construction Hearing 

In its responsive claim construction brief, Homeland argues that at least six terms in 

the ‘961 Patent are indefinite under 35 U.S.C. § 112. Def.’s Resp. at 17. Homeland explains that 

it identified these terms in its preliminary claim constructions that the parties exchanged as provided 

by Patent Local Rule 4-2. See Def.’s Resp. at 18 n.6. However, there is no discussion of these 

terms in the parties’ joint claim construction and prehearing statement, which is governed by Patent 

Rule 4-3. ECF No. 32. In his brief, Leines argues Homeland’s arguments regarding indefiniteness 

are “procedurally improper,” Pl.’s Reply at 3, but at hearing, he argued the court should decide the 

issue of indefiniteness at the current claim construction stage. 

 Because Homeland has the burden of demonstrating indefiniteness and invalidity 

contentions are potentially dispositive, Homeland’s indefiniteness arguments are more 

appropriately advanced in a summary judgment motion, rather than in a responsive claim 

construction brief. See 2-Way Computing, Inc. v. Nextel Fin. Co., No. 2:11-CV-00012-JCM, 2012 

WL 4846145, at *20 (D. Nev. Oct. 9, 2012) (magistrate judge’s decision noting “it 

is more appropriate to defer these arguments until summary judgment because they are potentially 

 

machinery.” See Rout, Merriam-Webster, https://www.merriam-webster.com/dictionary/rout (last 

visited Jan. 22, 2020); Manufacture, Merriam-Webster, https://www.merriamwebster.com/dictionary/manufacture (last visited Jan. 22, 2020). 

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dispositive and would invalidate the patent, and because of the burden of proof required to show 

indefiniteness.”), amended on reconsideration on other grounds, sub nom. 2-Way Computing, Inc. 

v. Sprint Nextel Corp., No. 2:11-CV-12 JCM PAL, 2013 WL 2218010 (D. Nev. May 17, 2013) 

(district judge’s decision on reconsideration). Homeland appears to anticipate this argument, 

stating, in a footnote, “To the extent the Court desires further briefing on the indefiniteness issue, 

Homeland will file a supplemental brief or separate motion for summary judgment.” Def.’s Resp. 

at 18 n.6. 

Though “[i]ndefiniteness is a question of law,” Amgen Inc. v. F. Hoffman–LA Roche 

Ltd., 580 F.3d 1340, 1371 (Fed. Cir. 2009) (citation omitted), Homeland’s indefiniteness arguments 

under 35 U.S.C. § 112 are not properly raised in its responsive claim construction brief, given the 

procedural framework provided by the Patent Local Rules in force here. The local rule governing 

claim construction proceedings, Patent Local Rule 4, does not expressly reference indefiniteness. 3 

The rule’s provision governing claim construction briefs states that the “party claiming patent 

infringement” or “the party asserting invalidity if there is no infringement issue present in the case” 

shall file “an opening brief and any evidence supporting its claim construction.” Patent L.R. 4-

5(a). No later than 14 days afterwards, the opposing party is to file “its responsive brief and 

supporting evidence.” Patent L.R. 4-5(b). Homeland did not file an opening brief, nor does it 

contend it was entitled to do so, since there is clearly an “infringement issue present in [this] case.” 

See Compl. at 20 (alleging patent infringement). Rather, the applicable local rules reserve the claim 

construction hearing and related briefing for arguments related solely to claim construction, as the 

title belies. Patent L.R. 4 (“Claim Construction Proceedings”). For this reason, and because 

 3

 None of the remaining provisions mention indefiniteness either. Rule 4-2, 

governing the exchange of preliminary claim constructions and extrinsic evidence, directs the 

parties to include in the “Preliminary Claim Construction”: “for each term which any party contends 

is governed by 35 U.S.C. § 112(6), identify the structure(s), act(s), or material(s) corresponding to 

that term’s function,” in addition to their proposed constructions on each term identified “for claim 

construction.” Patent L.R. 4-2(a). However, 36 U.S.C. § 112 does not have a subdivision six, only 

a subdivision “(f),” which is titled “Element in Claim for a Combination” and is not the subdivision 

related to indefiniteness. The requirement of definiteness is rooted in subdivision “(b),” previously 

paragraph two of section 112. Nautilus, Inc. v. Biosig Instruments, Inc., 572 U.S. 898, 902 (2014) 

(“The 1870 Act’s definiteness requirement survives today, largely unaltered.”) (citing 35 U.S.C. 

§ 112, ¶ 2 (2006 ed.)). 

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defendant has the burden of proof on the issue, the court finds the question whether certain terms 

in the ‘961 Patent are indefinite is more suitable for resolution on summary judgment and does not 

reach the question here. See Takeda Pharm. Co. v. Handa Pharm., LLC, No. C-11-00840 JCS, 

2012 WL 1243109, at *16 (N.D. Cal. Apr. 11, 2012) (“Due to the largely factual nature of [the 

inquiry whether a term is indefinite], the Court concludes that this question is more suitable for 

determination on summary judgment than at the claim construction phase of the case.”) (citing 

CSB–System Int’l, Inc. v. SAP America, Inc., 2011 WL 3240838, at *17–18 (E.D. Pa., July 28, 

2011) (discussing reasons for deferring indefiniteness inquiry to summary judgment4

)); see also 

Chiron Corp. v. Genentech, Inc., No. CIV.S-00-1252 WBSGGH, 2002 WL 32123928, at *2 (E.D. 

Cal. June 24, 2002) (where party brought summary judgment motion on issue of indefiniteness, 

court explained “it is not uncommon for courts to find a claim term invalid for indefiniteness after 

construing the term” and therefore motion was procedurally sound); but see Eclectic Prod., Inc. v. 

Painters Prod., Inc., No. 6:13-CV-02181-AA, 2015 WL 930045, at *2 (D. Or. Mar. 2, 2015) 

(deciding issue of indefiniteness when raised affirmatively in plaintiff’s opening claim construction 

brief); Noah Systems, Inc. v. Intuit Inc., 675 F.3d 1302, 1311 (Fed. Cir. 2012) (“Whether a claim 

complies with the definiteness requirement of 35 U.S.C. § 112 ¶ 2 is a matter of claim construction, 

which we review de novo.” (footnote omitted)). Homeland may raise its indefiniteness arguments 

in a motion for summary judgment. 

2. Waiver of Indefiniteness Expert 

For the first time at hearing, Leines raised the argument that Homeland waived its 

ability to offer an expert on indefiniteness, because Homeland did not name an expert on 

indefiniteness before expert discovery on claim construction closed. The court ordered the parties 

 

4

 “Several well-settled principles [] tend to discourage rulings on indefiniteness at the 

Markman stage. First, there is a high burden of proof on a party challenging the patent based on 

indefiniteness, which is difficult to meet at the early stages of litigation. Proof of indefiniteness 

must meet an exacting standard. Haemonetics Corp. v. Baxter Healthcare Corp., 607 F.3d 776, 

783 (Fed. Cir. 2010). A patentee need not define his invention with mathematical precision in 

order to comply with the definiteness requirement. Hearing Components, Inc. v. Shure Inc., 600 

F.3d 1357, 1367 (Fed. Cir. 2010). Moreover, a claim is not indefinite simply because the parties 

disagree concerning construction. Id.” CSB–System Int’l, Inc., 2011 WL 3240838 at *17. 

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to submit supplemental briefing on this issue, ECF No. 44, which they have now done, Pl.’s Suppl. 

Br., ECF No. 45; Def.’s Suppl. Br., ECF No. 46. 

 Following the procedure set forth in Patent Local Rule 4-2, the parties exchanged 

preliminary claim constructions. See Patent L.R. 4-2(a). Therein, Homeland identified six terms 

in Claim 11 that it argued rendered the claim indefinite under 35 U.S.C. § 112, but Homeland did 

not identify an expert on the subject. Def.’s Resp., Ex. A (Def.’s Proposed Claim Constructions), 

ECF 36-1. Patent Local Rule 4-2 directs the parties as the next step to submit a joint claim 

construction statement that includes “testimony of percipient and expert witnesses.” Patent L.R. 

4-2(b). However, in the parties’ joint claim construction statement, filed on the docket, 

Homeland did not raise the issue of indefiniteness. See ECF 32. Only in its responsive claim 

construction brief, as noted above, did Homeland raise its indefiniteness arguments. Def.’s Resp. 

at 17. 

 Essentially, the parties’ dispute comes down to whether indefiniteness is properly 

addressed within the parameters of this claim construction phase of the case, for which discovery 

closed on April 15, 2019, or whether indefiniteness should be decided in a dispositive motion, in 

which case the deadline to identify an expert is December 6, 2019. Scheduling Order, ECF No. 

24, at 2 (April 15, 2019 is “Close of Claim Construction Discovery”; Am. Scheduling Order at 1 

(setting December 6, 2019 as date “Opening Expert Reports due (on issues for which the party 

bears the burden of proof,” but not amending “Close of Claim Construction Discovery” date). 

Specifically, Homeland argues indefiniteness is an invalidity contention and is therefore subject 

to Patent Local Rule 3 covering “Patent Disclosures,” rather than Local Patent Rule 4, which 

governs “Claim Construction Proceedings.” Def.’s Suppl. Br. at 3–4 & n.3 (citing Local Patent 

Rule 3-3(d) (requiring disclosure of “[a]ny grounds of invalidity based on . . . indefiniteness”)). 

For procedural purposes, the court agrees. As discussed above, the patent local rule governing 

claim construction does not address claims of indefiniteness. By contrast, Rule 3 refers directly to 

indefiniteness arguments, directing the party opposing patent infringement to serve on all parties 

its “Invalidity Contentions,” containing, inter alia, “[a]ny grounds of invalidity based on 35 

U.S.C. § 101, indefiniteness under 35 U.S.C. § 112(2) or enablement or written description under 

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35 U.S.C. § 112(1) of any of the asserted claims.” Patent L.R. 3-3(d). That the drafters of the 

Patent Local Rules chose to call out indefiniteness arguments specifically in Rule 3-3, but not in 

Rule 4, suggests the omission was deliberate, and signals indefiniteness is procedurally not a part 

of the claim construction phase. 

 Furthermore, courts often address indefiniteness at the summary judgment stage, 

and this court never signaled otherwise, so it was reasonable for Homeland to expect the court 

would do the same here and to interpret the scheduling order accordingly. See, e.g., Takeda 

Pharm. Co., 2012 WL 1243109, at *16. Finally, indefiniteness is a dispositive issue on which 

Homeland “bears the burden of proof.” See Scheduling Order at 2; see also Pl.’s Reply at 3. 

Therefore, by the plain language of the scheduling order, Homeland’s indefiniteness expert 

disclosure was not due until December 6, 2019. Am. Scheduling Order at 1. 

IV. CONCLUSION 

For the reasons above, the court construes the terms in Claim 11 of the ‘961 Patent 

as follows: 

Claim Term Construction 

“Simple clip” The term does not require construction, because the 

preamble is not limiting with respect to “simple clip.” 

“Rigid material” “A material that is rigid” 

“A pair of sidewalls which 

directly face each other” 

“Sidewall” is construed to mean its plain and ordinary 

meaning, “a wall that forms the side of something.” 

Otherwise, the term does not require construction. 

“Each ledge . . . being 

spaced up from the bottom 

of a respective sidewall by a 

predetermined distance . . .” 

“Any spacing that exists between the sidewalls that is 

determined before installation or re-installation.” 

“Spaced apart by a 

predetermined spacing.” 

“Any spacing that exists between the sidewalls that is 

determined before installation or re-installation.” 

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The court does not rule at this time on the issue of indefiniteness, which it will decide if and when 

the issue is properly raised in a motion for summary judgment. Homeland has not waived its ability 

to offer an expert on indefiniteness, so long as it disclosed such an expert before the December 6, 

2019 deadline, which has now passed. If Homeland requires an extension of this deadline in light 

of this order, it may seek one through a stipulation offered by the parties or in an ex parte request. 

 This order resolves ECF No. 35. 

IT IS SO ORDERED. 

DATED: January 23, 2020. 

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