News & Analysis as of

Patent Invalidity United States Patent and Trademark Office

Goodwin

Issue 45: PTAB Trial Tracker

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In Pfizer Inc., v. Sanofi Pasteur Inc., SK Chems Co. Ltd., v. Vidal, 2019-1871 (March 5, 2024), the Federal Circuit affirmed the Board’s conclusions that claims 1–45 of U.S. Patent No. 9,492,559 were unpatentable due to...more

Erise IP

Eye on IPRs: August 2024

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Every month, Erise’s patent attorneys review the latest inter partes review cases and news to bring you the stories that you should know about: Federal Circuit Addresses Waiver of Argument Not Raised in Request for...more

Knobbe Martens

Federal Circuit Review | July 2024

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In Natera, Inc v. Neogenomics Laboratories, Inc., Appeal No. 24-1324 the Federal Circuit held that  preliminary injunction may be valid if a substantial question of invalidity was not raised, even if the asserted patent is...more

AEON Law

Patent Poetry: Federal Circuit Upholds IPR Estoppel Provisions

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The Federal Circuit has affirmed a decision by the Patent Trial and Appeal Board (PTAB or Board) concerning the application of 37 CFR § 42.73(d)(3)(i)’s estoppel provisions in invalidating amended patent claims....more

Knobbe Martens

Estoppel Does Not Apply to Previously Issued Claims

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Before Bryson, Lourie, and Reyna. Appeal from the United States Patent and Trademark Office (“PTO”), Patent Trial and Appeal Board (“Board”). Summary: Estoppel under 37 C.F.R. § 42.73(d)(3)(i) only applies to obtaining new...more

ArentFox Schiff

USPTO New Proposed Terminal Disclaimer Practice

ArentFox Schiff on

On May 10, the US Patent and Trademark Office (USPTO) released proposed amendments to the rules of practice to add a new requirement for terminal disclaimers filed to prevent non-statutory double patenting....more

Akin Gump Strauss Hauer & Feld LLP

Court Dismisses Patent Claims Directed to Intermittent Fault Detection in Electrical Systems for Aircrafts as Ineligible Subject...

A district court recently granted a Rule 12(b)(6) dismissal of patent claims directed to intermittent fault detection (IFD) technology for electrical systems in aircrafts, deciding that the asserted claims are patent...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - April 2024 #3

Luv N’ Care, Ltd. v. Lindsey Laurain, Appeal Nos. 2022-1905, -1970 (Fed. Cir. Apr.12, 2024) - In this week’s Case of the Week, the Federal Circuit affirmed the district court’s bench trial decision that unclean hands...more

Goodwin

Issue 44: PTAB Trial Tracker

Goodwin on

The availability of post-grant proceedings at the Patent Trial and Appeal Board (PTAB) has changed the face of patent litigation. This periodic digest is designed to keep you up-to-date by highlighting interesting PTAB,...more

Patterson Belknap Webb & Tyler LLP

One Down But One to Go: Judge McMahon Concludes Asserted Patent is Not Unenforceable Through Infectious Unenforceability

On February 23, 2024, Judge McMahon (S.D.N.Y.) entered findings of fact and conclusions of law pertaining to issues relating to Defendant Lutron Electronics Co. (“Lutron”)’s defenses of invalidity and unenforceability of U.S....more

Foley & Lardner LLP

Sotera Stipulation Filed After the Patent Owner’s Response Still Deemed Effective

Foley & Lardner LLP on

The Patent Trial and Appeal Board (PTAB) recently addressed both the timing requirements and procedures for filing a Sotera stipulation before the Board in, BMW of North America LLC v. Northstar Systems LLC, IPR2023-01017...more

Fish & Richardson

2023 Post-Grant Annual Report

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2023 was a busy year at the Patent Trial and Appeal Board, as post-grant practice continued to evolve at a rapid pace. At the United States Patent and Trademark Office, there were big developments in Director Review and...more

Irwin IP LLP

Patents Have Mistakes; You Should Fix Them At The PTO 

Irwin IP LLP on

Canatex Completion Sol. Inc. vs. Wellmatics LLC, et al., Case No. 4:22-cv-03306, Dkt. No. 100 (S.D. Tex. Dec. 14, 2023) - Found a mistake in your patent?  You might want to get it fixed at the U.S. Patent and Trademark...more

Haug Partners LLP

A U.S. View on the UPC – Part 8: Challenging the Validity of a Patent

Haug Partners LLP on

On June 1, 2023, the new European Unified Patent Court (UPC) opened its doors, and enforcement of European patents in (currently) 17 contract member states is now possible with one action. This series of articles – directed...more

Sterne, Kessler, Goldstein & Fox P.L.L.C.

[Webinar] Developments in IPR Estoppel - December 5th, 1:00 pm - 2:00 pm EST

Director Jason A. Fitzsimmons and Counsel Richard A. Crudo will present the “Developments in IPR Estoppel” webinar on Tuesday, December 5, 2023, at 1:00 PM ET. The possibility of being estopped from asserting prior art in...more

Jones Day

PTAB Doubles Down on Interference Estoppel Issue

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The Patent Trial and Appeal Board held all challenged claims of IGT’s patent unpatentable as obvious over two prior art patents. Zynga Inc. v. IGT, IPR2022-00199-32. In doing so, the PTAB further held that, contrary to...more

Schwabe, Williamson & Wyatt PC

Latest Federal Court Cases - October 2023 #2

Finjan LLC v. SonicWall, Inc., Appeal No. 2022-1048 (Fed. Cir. Oct. 13, 2023) In the Federal Circuit’s only precedential opinion this week, a majority affirmed summary judgment of non-infringement on appellant Finjan’s...more

AEON Law

Patent Poetry: Patent Term Adjustments in Double-Patenting Determinations

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The Federal Circuit has ruled that when members of a patent family have different expiration dates due to patent term adjustments (PTAs), the earlier-expiring patent family members can be used as a basis for an...more

McDermott Will & Emery

The End Is Not So Near: Patent Term Adjustments Count in Obviousness-Type Double Patenting Determinations

Addressing for the first time how patent term adjustments (PTAs) interact with obviousness-type double patenting (ODP), the US Court of Appeals for the Federal Circuit concluded that when members of a patent family have...more

Farella Braun + Martel LLP

What Patent Bills Would Mean for Infringement Litigation

Two bills recently introduced in Congress could significantly affect the current patent litigation landscape. The bipartisan bills are titled the Patent Eligibility Restoration Act of 2023 and the Promoting and Respecting...more

Foley & Lardner LLP

Federal Circuit Puts Patent Term Adjustment On The Chopping Block

Foley & Lardner LLP on

In In re Cellect, the Federal Circuit effectively held that Patent Term Adjustment (PTA) awarded under 35 USC § 154 is not protected from obviousness-type double patenting (OTDP) in view of a patent with the same 20-year...more

Akin Gump Strauss Hauer & Feld LLP

Federal Circuit: Patent Term Adjustment Results in Invalidity on Obviousness-Type Double Patenting Grounds

The Federal Circuit recently affirmed a United States Patent and Trademark Office (PTO) decision to invalidate four related patents on obviousness-type double patenting grounds (OTDP), holding that any analysis of OTDP for...more

Fish & Richardson

Texas Patent Litigation Monthly Wrap-Up: April 2023

Fish & Richardson on

Four subjects stood out in patent litigation in Texas in April 2023: (1) applicability of the customer-suit exception to the first-to-file rule; (2) the level of ties a reasonable royalty methodology must have to the facts of...more

AEON Law

Patent Poetry: PTAB: Claim Preclusion Doesn’t Apply to IPR Proceedings

AEON Law on

The Patent Trial and Appeal Board (PTAB) has denied VLSI’s motion to terminate Intel’s involvement in an inter partes review (IPR) of a VLSI patent. VLSI and Intel are engaged in a legal war across several jurisdictions....more

Sheppard Mullin Richter & Hampton LLP

2023 Federal Circuit Case Summaries

We are excited to share Sheppard Mullin’s inaugural quarterly report on key Federal Circuit decisions. The Spring 2023 Quarterly Report provides summaries of most key patent law-related decisions from January 1, 2023 to March...more

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