Topic
Patent Validity
197 published works
PTABWatch
When Metadata Corroborates Inventor Testimony
An inventor’s testimony of his/her invention date requires independent corroboration. But can that evidence come from a machine rather than a person? In Google LLC v. Valtrus Innovations Ltd., Appeal…
Harness Dickey Blog
IPR, PGR, or Reexamination? Choosing a Path to Challenge a Patent at the USPTO
The three ways to attack a patent’s validity at the Patent Office: what each one costs you, what each one buys you, and why the choice is harder than it…
Global Arbitration News
Between Courts and Clauses: The Arbitrability of Patent Validity Disputes in Germany – and What Other Jurisdictions Do
By Dr. Gerrit Niehoff, Reetha Monika Thomas
Introduction While the arbitrability of patent validity disputes has long been established in many jurisdictions, the issue remains a subject of controversy in others, particularly in Germany. This debate arises…
IP Brief
USPTO’s Proposed IPR Rule Could Strengthen Patent Validity and Reshape Enforcement Trends
By Andrea Arndt
As of October 2025, United States Patent and Trademark Office (USPTO) Director John A. Squires has reclaimed authority to decide all patent review institution proceedings. This responsibility was previously delegated…
Intellectual Property Law Blog
PTAB Again Upholds the Heavily Litigated Neo Wireless Patent: What the Latest Decisions Mean for Automakers
In a setback for automakers, the Patent Trial and Appeal Board (PTAB) has once again upheld the validity of Neo Wireless’s U.S. Patent No. 10,447,450, rejecting challenges brought by several…
Intellectual Property Law Blog
Erroneous Exclusion of On-Sale Bar Evidence: Federal Circuit Revives Invalidity Challenge in Super Lighting v. CH Lighting Patent Dispute
By Mengmeng Du
Jiaxing Super Lighting Elec. Appliance Co. Ltd. v. CH Lighting Tech. Co., Ltd., No. 23-1715 (Fed. Cir. 2025) – On July 28, 2025, the Federal Circuit issued a decision affirming…
Discovery: The DISCO Blog
Understanding Patent Invalidation: Risks, Defenses, and Legal Strategies | DISCO
By DISCO
Find out how patent invalidity affects innovation, licensing, and legal strategy, and what entrepreneurs and legal teams can do to stay protected.
PTAB Litigation Blog
INFORMATIVE: Acting Director Rescinds Institution Where Claims Held Invalid in District Court Case
Visit Jones Day's PTAB Litigation blog at www.ptablitigationblog.com. By David Linden, Dave Maiorana, and Sue Gerber – On August 22, 2024, Hulu, LLC (“Hulu”) filed two separate petitions for inter…
Dispute Resolution Blog
DMRC V. DAMEPL and the 2024 Amendment Bill: Where Patent illegality stands in Arbitration?
By Hiral Gupta, CAM Disputes Team
INTRODUCTION The evolution of arbitration in India has been marked by a steadfast judicial commitment to enhancing its merits, particularly its efficiency, speed, and limited judicial intervention. This development offers…
PTAB Law Blog
Product-by-Process Analysis: Invalidity ≠ Infringement
On March 4, 2025, the Federal Circuit affirmed the Patent Trial and Appeal Board’s (“PTAB”) decision in Restem, LLC v. Jadi Cell, LLC, No. 23-2054, 2025 WL 679195, at *1…