Source: https://patentlyo.com/patent/invalidity
Timestamp: 2019-04-26 00:25:10+00:00

Document:
Last year, I investigated the role that the presumption of validity, and the evidentiary standard for rebutting it, played in validity challenges adjudged at the Federal Circuit. In March 2010, Professor Crouch graciously published the study's results in the Patently-O Patent Law Journal. [Link]. In response to Microsoft's petition for certiorari challenging the Federal Circuit's hard-line application of a clear and convincing standard, please find updated statistics below that include Federal Circuit decisions through October 2010. To learn the methodology for collecting the data, and to read my understanding of what they suggest (and do not suggest), please refer to the original publication. A spreadsheet of the updated data is available. [Link].
At least eighty-eight of the one hundred nineteen (74%) patent challenges analyzed were evidentiary-standard independent. Of these determinations, forty-one (47%) were based on a granted motion for summary judgment, six (7%) were based on a granted motion for JMOL, twenty-four (27%) resulted from a jury trial, and seventeen (19%) resulted from a bench trial. Twenty-one (24%) determinations were reversals and seventy (80%) resulted in invalidation. The Federal Circuit mentioned the presumption or the evidentiary standard for rebutting it thirty-four times (39%) and expressly applied them eleven times (13%).
At most, thirty-one of the one hundred nineteen (26%) patent challenges may have been evidentiary standard dependent. Of these determinations twenty-three (74%) resulted from a jury trial and eight (26%) resulted from a bench trial. None of these challenges resulted in invalidation, and each was upheld at the Federal Circuit. The Federal Circuit mentioned the presumption of validity or the evidentiary standard twenty-one times (68%) and expressly applied them fifteen times (48%).
Thanks to Lucas Watkins and Steve Kenny for helping to create this update.
The actual history of the rule challenged in i4i is rather different. The rule was not a creature of the Federal Circuit, but rather of its predecessor court, the Court of Customs and Patent Appeals. The CCPA held in Astra-Sjuco v. ITC, 629 F.2d 682 (CCPA 1980) that patents must be proven invalid by clear and convincing evidence. It had already held, in Solder Removal Co. v. ITC, 582 F.2d 628 (CCPA 1978), that the statutory presumption of validity is not weakened when a challenger introduces prior art not considered by the PTO.
In its first decision, South Corp. v. United States, 690 F.2d 1368 (Fed. Cir. 1982), the Federal Circuit adopted the CCPA’s case law as controlling precedent. The Federal Circuit’s early cases were quite clear: in holding that the presumption of validity was unaffected by prior art not before the PTO, the court was following the binding precedent of the CCPA, rather than creating a new rule of law.
How did the CCPA, which ordinarily heard appeals from the PTO, come to create a rule governing patent litigation? Under the Trade Act of 1974, the International Trade Commission was given the power to bar importation of articles that would infringe U.S. patents. In its final years, the CCPA heard a handful of appeals – Astra-Sjuco and Solder Removal among them – from infringement complaints decided by the ITC.
It is probably not coincidental that the CCPA devised a patentee-friendly rule. For most of its history, the CCPA heard only appeals from the PTO. From this perspective it saw only the benefits of the patent system: inventors bringing their inventions to the PTO. Even in the ITC infringement cases, the CCPA saw only domestic patentees who might be injured by foreign competition.
In contrast, the regional Circuit Courts of Appeals, in their many years’ experience with infringement cases, routinely saw the costs of the patent system: infringers, perhaps even innocent infringers, who were nonetheless forced to pay heavy damages and abandon otherwise legitimate and productive activity. Given that perspective, it is not surprising that prior to 1982, several of the Circuit Courts of Appeals had held that the presumption of validity should be weakened when a challenger presents prior art not considered by the PTO. But intentionally or not, when the Federal Circuit adopted the CCPA’s precedent in South Corp., it instantly consigned any conflicting precedent from the Circuit Courts to the dustbin of history.
There was a long line of precedent from the Court of Claims holding unequivocally that the presumption of validity was weakened when a challenger introduced prior art not considered by the PTO: General Elec. Co. v. United States, 572 F2d 745, 761 (Ct. Cl. 1978); Douglas v. United States, 510 F.2d 364, 369 (Ct. Cl. 1975); Nossen v. United States, 416 F.2d 1362, 1371 (Ct. Cl. 1969); Ellicott Mach. Corp. v. United States, 405 F.2d 1385, 1392 (Ct. Cl. 1969); Martin-Marietta Corp. v. United States, 373 F.2d 972, 977 (Ct. Cl. 1967). As far as I can determine, the Federal Circuit has never taken note of these decisions. But under the Federal Circuit’s own case law, the line of authority descending from the Court of Claims is just as binding as that of the CCPA.
Note: Prof Lefstin discusses the how the CCPA’s unique perspective shaped the law it bequeathed to the Federal Circuit in a paper forthcoming in the Loyola of Los Angeles Law Review, available at http://papers.ssrn.com/sol3/papers.cfm?abstract_id=1565818.
 See, e.g., D.L. Auld Co. v. Chroma Graphics Corp., 714 F.2d 1144, 1147 n.2 (Fed. Cir. 1983).
The presumption attending the patent, even when directly assailed, that it was issued upon sufficient evidence that the law had been complied with by the officers of the government . . . can only be overcome by clear and convincing proof.
U.S. v. Iron Silver Min. Co., 128 U.S. 673 (1888). Of course, Iron Silver does not concern invention rights. Rather, the case is about patents for placer mineral rights that were granted to Iron Silver based on the company's claim that it had discovered valuable minerals on the surface of US public land near Leadville, Colorado. Under the law at the time, discovery of surface minerals on public lands allowed a prospector to stake a legal claim that extended to mineral rights under the surface.
Still, the court's holdings on land-patent rights may have some relevance to Microsoft's current challenge to the clear and convincing standard. As Professor Ed Kitch noted in his seminal 1977 article titled The Nature and Function of the Patent System that introduces the "prospect theory of patents," there are many similarities between the mineral claiming patent system and the utility patent system. The prospect theory suggests that patent rights are useful in channeling and coordinating post-invention development activities. The core idea that Kitch recognized is that a business is more likely to pursue post-invention investment and development of a product that falls within its own sphere of patent exclusivity. "The patent system achieves these ends by awarding exclusive and publicly recorded ownership of a prospect shortly after its discovery. The patent system so viewed is closely analogous to the American mineral claim system for public lands. For expositional convenience, this view of the patent system will be called the prospect theory."
Although Kitch does not expressly discuss the legal standards for invalidation, his theory would suggest strong rights tend to better-serve the prospect-role of patents.
In 2009, an Eastern District of Texas jury awarded $200 million to i4i after finding that Microsoft willfully infringed the Canadian company’s patent. Judge Davis subsequently added-on $40 million of punitive damages for willful infringement. The judge also issued an injunction ordering Microsoft to stop selling Word products with the capability of using “custom XML.” That injunction was stayed by the Federal Circuit pending appeal. On appeal, the Federal Circuit affirmed the lower court’s findings of validity, willful infringement, enhanced damages, and permanent injunctive relief. Despite the injunction, Microsoft continues to sell its software based on a “patch” that apparently prevents the use of custom XML in Word.
Meanwhile, the USPTO conducted a reexamination of the i4i patent and confirmed that the claims at issue were properly patentable. However, the reexamination did not consider what Microsoft's (now) argues is its key invalidity argument. That invalidity argument is based on a prior offer-for-sale, and offers-for-sale are excluded from consideration during reexaminations. The prior offer-for-sale was likewise not considered during the original prosecution of the i4i patent.
This petition is one similar to that raised by Microsoft in z4. That petition was withdrawn when the parties settled.
Eleven parties have filed amicus briefs supporting the petition for certiorari. Microsoft's counsel makes the point that the companies signing in their own name “employ more than three million people and the publicly-traded companies have a combined market capitalization of more than $1.2 trillion.” Briefs opposing the petition as well as i4i's opposition appear to be due on October 29, 2010.
Chief Judge Roberts has recused himself from the case.
A review of the briefs follow. Many of the briefs cover similar material and I have attempted to point out some of the differences. Of course, all of these briefs listed argue that the current evidentiary standard is too-high.
36 Professors led by Mark Lemley: The professors suggest that the clear and convincing standard does not make sense based on the known bureaucratic difficulties of the USPTO and the result that many issued patents would not survive a serious Section 103(a) analysis. The professors also write that the Supreme Court offered a signal in KSR that the Federal Circuit should reconsider its standard, but that the Federal Circuit has refused to do so.
Brief by Acushnet, SAP, and Others: James Dabney and John Duffy collaborated to examine the history of invalidity defenses. The brief does an especially good job of spelling out different aspects of an invalidity argument that may need a higher standard of proof. Thus, Acushnet seemingly argues that uncorroborated oral testimony should still be excluded even if the general standard of proof was lowered. This is one of the more nuanced briefs.
Teva, Cisco, and the Generic Pharma Association: The current standard creates an incentive for patent applicants to conceal material information from the USPTO. An issued patent is valuable — even if it would eventually be found invalid. The cost of invalidating a patent is so high that a patentee can usually obtain significant settlements even for a patent that should have never issued.
Google, Verizon, Dell, HP, Wal-Mart: A preponderance-of-the-evidence is the default burden of proof in civil cases. The Federal Circuit has no legal justification for its clear-and-convincing standard that unduly burdens accused infringers. The USPTO normal examination of patents is insufficient to warrant a high level of deference.
Securities Industry and Financial Markets Association: “The Federal Circuit’s stance is contrary to the guidance of this Court as well as to the standards applied by the regional circuits before 1982.” The flood of bad patents is especially troublesome in the area of business methods and financial software. New transparency laws make it more likely that these patents will be enforced.
Facebook, Netflix, et al.: An important goal of the patent system is to encourage innovation without disrupting other-innovation through mistaken government “grants of monopolies.” To harmonize with the reexamination statute, court's should at least lower the threshold for proving invalidity once a substantial new question of patentability is established. (I wonder if Facebook's loose use of the “monopoly” term here will come back to haunt them.).
EFF et al.: Giving value to illegitimate patents creates perverse incentives. These problems are particularly concerning in the software and internet realms for several reasons, including that they impede alternative innovation models such as FOSS. In addition, the clear and convincing standard is a non-statutory extension of the law.
CTIA – The Wireless Association: The clear and convincing standard makes a difference in litigation — making it much more likely that a patent will survive validity attacks. This reality has created practical problems in dealing with holders of low-quality patents who seek large damage awards.
One of the next major legal challenges to patent rights will be against the strong presumption of validity associated with the patent grant. Section 282 of the patent act says only that a patent and its claims "shall be presumed valid." Under longstanding doctrine, this presumption can only be overcome with clear and convincing evidence of invalidity. The challenge to this presumption is most likely on two fronts: (1) expanded post-grant review and (2) court challenges to the weight of the presumption.
Expanded Post Grant Review: The PTO uses the lower preponderance (more likely than not) standard when refusing to grant patent rights, and expanded post-grant oppositions will likely allow would-be defendants to challenge patents at the lower standard.
Challenging the Weight of the Presumption: The greater change would come, however, if the Supreme Court takes a case on point. Since the 1952 Supreme Court has not definitively weighed-in on the the level of proof necessary to overcome the statutory presumption of validity, and the Court's Radio Corp (1934) opinion arguably sums up the pre-unification state of the law: "The force of that presumption has found varying expression in this and other courts." Of course, the unified Federal Circuit cleared the air by firmly establishing the clear and convincing standard as the standard. In a 2004 article, Mark Janis reviews the history of the presumption – finding that the clear and convincing standard was already the majority rule prior to unification, but that the Federal Circuit made the standard "meaningful once again." His message: "there is no strict, inevitable correlation between the words of the evidentiary standard and the overlying message delivered by the presumption of validity."
More recently, in KSR the Supreme Court all but suggested one potential petition question: "whether the failure to disclose [relevant prior art] during prosecution … voids the presumption of validity given to issued patents." A more likely focus may be on reducing strength of the presumption over prior art that was not considered during prosecution.
Question: How would patent practice change if the strong presumption of validity was only applicable over prior art actually considered during prosecution?
I do not believe that the presumption of validity should be reduced. However, I wrote this post to let folks know that it is on the horizon and that a change is somewhat likely during the life of any currently pending patent application.
Mark Janis, Reforming Patent Validity Litigation: The "Dubious Preponderance", 19 Berkeley Tech. L.J. 923 (2004).
This post was prompted by an e-mail amongst IP law professors with special input from Mark Lemley, Arti Rai, David Hricik, Howard Skaist, Josh Sarnoff and Tom Field. See also Mark A. Lemley and Douglas Lichtman, Rethinking Patent Law's Presumption of Validity, 60 Stanford Law Review 45 (2007)(suggesting gold-plated patents).
On appeal, the Federal Circuit panel (Judges Newman, Bryson, and Linn) reversed – finding that “improper revival” is not a proper invalidity defense in a patent infringement action.
(3) Invalidity of the patent or any claim in suit for failure to comply with any requirement of sections 112 or 251 of this title.
Conditions for Patentability: In the appeal, the Federal Circuit saw the term “condition for patentability” of ¶2 above as a term of art and gave it a narrow interpretation: “While there are most certainly other factors that bear on the validity or the enforceability of a patent, utility and eligibility, novelty, and nonobviousness are the only so-called conditions for patentability.” Thus, complying with the timing requirements is not a condition of patentability.
Made a Defense: Taking a similarly hard stand, the appellate panel found that ¶4 above would only apply when another act had explicitly been ‘made a defense’ by the words of the patent act.
On several occasions, the court has allowed an invalidity finding when the cause of invalidity did not reach one of the Section 282 categories. In the 1995 Quantum case, for instance, the court invalidated a patent based on improperly expanding its scope during prosecution. Here, the court pushed Quantum aside finding it irrelevant or “inapposite.” On the policy side, the court noted that this case is a one-off and is unlikely to encourage bad applicant behavior.

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