As a standard of appellate review, “substantial evidence” is not peculiar to the Federal Circuit’s review of patent decisions from district courts and the Patent Office. All circuit courts are familiar with that review standard. They apply it routinely in deciding appeals. The standard originated with appeals of jury verdicts, in recognition of the role of credibility at trial. Under this standard, a judge determines not whether a jury’s decision was correctly made, but whether its decision could reasonably have been made based on the evidence it received. Recent opinions make apparent, however, that the Federal Circuit judges are divided and disagree on how to apply that standard.
Continue Reading The Federal Circuit’s Disagreement About What Constitutes “Substantial Evidence”
Sandip H. Patel
Sandip H. Patel has more than 20 years of experience in representing clients in inter partes matters before the Patent Office, including interferences, reexaminations, and AIA trials. He has a formal education in chemical engineering, but his work in these matters has spanned the entire spectrum of engineering and sciences, including biotechnology, chemistry/chemical engineering, mechanical engineering, and electrical engineering. Read full bio here.
Patent Office Proposes to Increase AIA Trial Fees

In the October 3, 2016, Federal Register, the Patent Office published a notice of proposed rulemaking to adjust various fees the Office charges for its services, including 18% to 56% increases for AIA trial fees (as shown below).
According to the notice, the Patent Trial and Appeal Board has received more than 4,700 AIA trial petitions since 2012, and it received over 1,900 in the fiscal year that ended September 30, 2016. In setting the fee structure for administering those trials, the Patent Office had to estimate the demand and workload based on limited data from its administration of inter partes reexamination and interference proceedings.
Continue Reading Patent Office Proposes to Increase AIA Trial Fees
Federal Circuit Again Refuses to Review PTAB’s Application of the Time Bar to AIA Petitions

Update: The Supreme Court issued a decision on April 20, 2020 holding that the patent statute (35 U.S.C. § 314(d)) bars judicial review of a PTAB decision of whether an inter partes review petition is time-barred pursuant to 35 USC 315(b). As stated by the Court, the PTAB’s “application of §315(b)’s time limit, we hold, is closely related to its decision whether to institute inter partes review and is therefore rendered nonappealable by§314(d).”
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An updated discussion of this issue is available here: Federal Circuit to Take AIA Time Bar Issue En Banc
Original Post: The Federal Circuit has again concluded it may not review the PTAB’s institution of inter partes review (IPR) over a patent owner’s objections that the IPR petition is time-barred. Wi-Fi One, LLC v. Broadcom Corp., Appeal 2015-1944 (Fed. Cir. Sept. 16, 2016). The court’s conclusion may be somewhat surprising because earlier this summer, in another case, the Supreme Court issued an order vacating the Federal Circuit’s decision that reached a similar conclusion. Click-to-Call Technologies, LP v. Oracle Corp., 622 Fed. Appx. 907 (Fed. Cir. 2015) (per curiam), vacated, 136 S. Ct. 2508 (Mem) (2016). We discussed that case and the Court’s order here.
Continue Reading Federal Circuit Again Refuses to Review PTAB’s Application of the Time Bar to AIA Petitions
PTAB Bar Association Officially Launched
We are pleased to share that the new Patent Trial & Appeal Board (PTAB) Bar Association launched Friday, September 16, 2016. The organization will provide a forum for communications between the legal community and PTAB officials and its Administrative Patent Judges (APJs), particularly to share best practices and stay abreast of the rule making, procedure…
Who Must Bear the Burden of Proof Regarding Patentability of Amended Claims?

On August 12, 2016, the Federal Circuit issued an order vacating its decision in In re Aqua Products, Inc., 823 F.3d 1369 (Fed. Cir. 2016), and reinstating the appeal after granting the aggrieved patent owner’s petition for rehearing en banc. We wrote about this decision a few months ago:
The Federal Circuit confirmed in a precedential opinion that the burden to prove patentability of an amended claim in an IPR proceeding rests squarely with the patentee, and in deciding a motion to amend claims, the Board only need consider the arguments presented by the patentee, not perform a full reexamination of the proposed claims. In In re Aqua Products, Inc., Appeal No. 2015-1177 (Fed. Cir. May 25, 2016), the Federal Circuit affirmed the PTAB’s denial of patentee Aqua’s motion to substitute claims because Aqua failed to prove patentability of the substitute claims.
Continue Reading Who Must Bear the Burden of Proof Regarding Patentability of Amended Claims?
The Possibility of Inconsistent Results Inherent to Congress’s Design of AIA Trial Reviews
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In Cuozzo Speed Technologies, LLC v. Lee, the Supreme Court recognized that a “district court may find a patent claim to be valid, and the agency may later cancel that claim in its own review.” The Court also recognized that because of the different evidentiary burdens in court versus before the agency—the Patent Office—“the possibility of inconsistent results is inherent to Congress’[s] regulatory design.” Is that inconsistency sensible? As good a case as any to consider that question involves a global pharmaceutical company, one of its top-selling drug products, and a patent it owns that covers the administration of that drug product.
Continue Reading The Possibility of Inconsistent Results Inherent to Congress’s Design of AIA Trial Reviews
Supreme Court Vacates Federal Circuit Decision that Refused to Review PTAB’s Application of the Time Bar to AIA Trials

Update: The Supreme Court issued a decision on April 20, 2020 holding that the patent statute (35 U.S.C. § 314(d)) bars judicial review of a PTAB decision of whether an inter partes review petition is time-barred pursuant to 35 USC 315(b). As stated by the Court, the PTAB’s “application of §315(b)’s time limit, we hold, is closely related to its decision whether to institute inter partes review and is therefore rendered nonappealable by§314(d).”
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An updated discussion of this issue is available here: Federal Circuit to Take AIA Time Bar Issue En Banc
Original Post: In a non-precedential decision late last year, the Federal Circuit dismissed a patent owner’s appeal of a Patent Trial and Appeal Board decision that refused to apply a statutory time-bar to deny institution of an inter partes review proceeding. Click-to-Call Technologies, LP v. Oracle Corp., 622 Fed. Appx. 907 (Fed. Cir. 2015) (per curiam). The court relied on the “No Appeal” provision in 35 USC § 314(d), which states that the “determination by the Director whether to institute an inter partes review under this section shall be final and nonappealable.”
Continue Reading Supreme Court Vacates Federal Circuit Decision that Refused to Review PTAB’s Application of the Time Bar to AIA Trials
PTAB Applies Interference Estoppel to Deny IPR Grounds
A judgment in an interference disposes of all issues that were, or by motion could have properly been, raised and decided. A losing party who could have properly moved for relief on an issue, but did not so move, may not take action in the Patent Office after the judgment that is inconsistent with that party’s failure to move. 37 C.F.R. § 41.127. This is known as “interference estoppel,” and was recently applied by the PTAB in partially denying an IPR petition. See Adama Makhteshim Ltd. v. Finchimica S.p.A., IPR2016-00577 (PTAB May 24, 2016) (order partially instituting IPR). The decision is important because it is a rare example of the PTAB’s consideration and application of interference estoppel to other Patent Office proceedings, including AIA trials.
Continue Reading PTAB Applies Interference Estoppel to Deny IPR Grounds
On the Clock: Appellate Standard of Reviewing PTAB’s AIA Trial Decisions
Now that Cuozzo Speed Techs., LLC v. Lee has been submitted to the Supreme Court, the next issue that may well make its way to the Court is the propriety of the Federal Circuit’s standard of reviewing the PTAB’s AIA trial decisions. Currently, the Federal Circuit reviews these decisions for substantial evidence. At least four Federal Circuit Judges do not, however, think that the court’s application of that review standard is consistent with the AIA and have concluded that the standard makes too little sense in the context of an appeal from the PTAB’s IPR decision. But because the court is bound by Supreme Court precedent to apply that standard of review, the Federal Circuit issued an order denying a petition Merck & Cie recently filed asking the full Federal Circuit to rehear a late-2015 decision issued by a divided three-judge panel in Merck & Cie v. Gnosis S.p.A., 808 F.3d 829 (Fed. Cir. 2015) (discussed here and here), rehearing en banc denied (Apr. 26, 2016) (order linked here).
Continue Reading On the Clock: Appellate Standard of Reviewing PTAB’s AIA Trial Decisions
No Appellate Review, No Matter: District Court Invalidates Patent After the PTAB Denies CBM Review
NRT Technology Corporation was not successful in petitioning the PTAB to institute CBM review of U.S. Patent No. 6,081,792, but was successful in moving a district court to dismiss an infringement action concerning the same patent on the basis that the patent claims ineligible (abstract) subject matter. Global Cash Access, Inc. v. NRT Tech. Corp., Case No. 2:15-cv-00822 (D. Nev. Mar. 25, 2016) (Order) (granting motion to dismiss). The apparently inconsistent PTAB and district court dispositions will no doubt encourage accused-infringers/putative-petitioners who do not succeed in initiating AIA (trial) review under a low evidentiary burden to try to invalidate the patent in district court under a higher evidentiary standard. Further, these decisions collectively demonstrate how a PTAB’s institution decision denying AIA review can be, without an appeal, effectively nullified by a parallel or later court proceeding.
Continue Reading No Appellate Review, No Matter: District Court Invalidates Patent After the PTAB Denies CBM Review