Federal Circuit IP Blog

Federal Circuit IP Blog

Federal Circuit Affirms Invalidity Challenge to Scientifically Impossible Claim Language on Enablement Grounds Federal Circuit Affirms Invalidity Challenge to Scientifically Impossible Claim Language on Enablement Grounds

Federal Circuit IP Blog

Federal Circuit Dismisses Non-Infringement Appeal of Only Certain Patent Claims, Denies Judge Reassignment Federal Circuit Dismisses Non-Infringement Appeal of Only Certain Patent Claims, Denies Judge Reassignment

Federal Circuit IP Blog

Warning Signs Ignored: Federal Circuit Vacates Denial of Rule 11 Sanctions and Attorneys’ Fees Warning Signs Ignored: Federal Circuit Vacates Denial of Rule 11 Sanctions and Attorneys’ Fees

Federal Circuit IP Blog

Private Sale Gets No Safe Harbor from §102(b)(1)(B) Private Sale Gets No Safe Harbor from §102(b)(1)(B)

Federal Circuit IP Blog

Federal Circuit Affirms PTAB Obviousness Finding in DRAM Data Path Patent Federal Circuit Affirms PTAB Obviousness Finding in DRAM Data Path Patent

Federal Circuit IP Blog

Federal Circuit Affirms Written Description Support, Vacates Mooted Non-Obviousness Finding Federal Circuit Affirms Written Description Support, Vacates Mooted Non-Obviousness Finding

Federal Circuit IP Blog

Federal Circuit Distinguishes Patent Eligibility Among Different Communications Systems Claims Federal Circuit Distinguishes Patent Eligibility Among Different Communications Systems Claims

Federal Circuit IP Blog

Staying True to the Specification: Federal Circuit Vacates Preliminary Injunction Based on Unsupported Claim Constructions Staying True to the Specification: Federal Circuit Vacates Preliminary Injunction Based on Unsupported Claim Constructions

Federal Circuit IP Blog

“2” Does Not Provide Written Description Support for “1”: Federal Circuit Affirms District Court’s Invalidation of Patent “2” Does Not Provide Written Description Support for “1”: Federal Circuit Affirms District Court’s Invalidation of Patent

Federal Circuit IP Blog

Federal Circuit Vacates and Remands Infringement and Damages Judgment After Erroneous Verdict Form and Eligibility Analysis Federal Circuit Vacates and Remands Infringement and Damages Judgment After Erroneous Verdict Form and Eligibility Analysis

Federal Circuit IP Blog

Federal Circuit Affirms Noninfringement Ruling in Hatch-Waxman Litigation Based on Claim Construction, Prosecution History Estoppel, and the Disclosure-Dedication Rule Federal Circuit Affirms Noninfringement Ruling in Hatch-Waxman Litigation Based on Claim Construction, Prosecution History Estoppel, and the Disclosure-Dedication Rule

Federal Circuit IP Blog

Mere Invalidity of Asserted Claims Does Not Render Patent Infringement Case Exceptional or Warrant Sanctions Mere Invalidity of Asserted Claims Does Not Render Patent Infringement Case Exceptional or Warrant Sanctions

Federal Circuit IP Blog

Redesigns Done Right at the ITC: Federal Circuit Affirms ITC Determination of Noninfringement of Redesigned Products Redesigns Done Right at the ITC: Federal Circuit Affirms ITC Determination of Noninfringement of Redesigned Products

Federal Circuit IP Blog

Federal Circuit Holds Defend Trade Secrets Act Claim Untimely Filed Federal Circuit Holds Defend Trade Secrets Act Claim Untimely Filed

Federal Circuit IP Blog

Federal Circuit Affirms Indefiniteness of the Term “About” Federal Circuit Affirms Indefiniteness of the Term “About”

Federal Circuit IP Blog

Federal Circuit Reinforces Injury-in-Fact Requirement in Appeals from Post-Grant Proceedings Federal Circuit Reinforces Injury-in-Fact Requirement in Appeals from Post-Grant Proceedings

Federal Circuit IP Blog

Spotlight on Upcoming Oral Arguments – June 2026 Spotlight on Upcoming Oral Arguments – June 2026

Federal Circuit IP Blog

Federal Circuit Affirms § 102(b) Invalidity; Source Code Commands Are Not Hearsay Federal Circuit Affirms § 102(b) Invalidity; Source Code Commands Are Not Hearsay

Federal Circuit IP Blog

When “and” and “e.g.” Matter: Federal Circuit Revives VLSI vs. Intel Case When “and” and “e.g.” Matter: Federal Circuit Revives VLSI vs. Intel Case

Federal Circuit IP Blog

Federal Circuit Affirms District Court’s Invalidation of Patents Because Inventorship Could Not Be Corrected Without Giving All Inventors Notice and an Opportunity to Be Heard Federal Circuit Affirms District Court’s Invalidation of Patents Because Inventorship Could Not Be Corrected Without Giving All Inventors Notice and an Opportunity to Be Heard

Federal Circuit IP Blog

Federal Circuit Reverses Eligibility of Software Claims Where Technical Improvements Were Not Reflected in Claims Federal Circuit Reverses Eligibility of Software Claims Where Technical Improvements Were Not Reflected in Claims

Federal Circuit IP Blog

Federal Circuit Reverses Indefiniteness Ruling on Means-Plus-Function Claim Federal Circuit Reverses Indefiniteness Ruling on Means-Plus-Function Claim

Federal Circuit IP Blog

Spotlight on Upcoming Oral Arguments – April 2026 Spotlight on Upcoming Oral Arguments – April 2026

Federal Circuit IP Blog

Federal Circuit: Unaccused Products “Tethered” to Infringement Can Be Used to Calculate Damages Federal Circuit: Unaccused Products “Tethered” to Infringement Can Be Used to Calculate Damages

Federal Circuit IP Blog

Federal Circuit Affirms Noninfringement Where Expert’s Analysis of Means-Plus-Function Claim Failed to Account for Disclosed Structure Federal Circuit Affirms Noninfringement Where Expert’s Analysis of Means-Plus-Function Claim Failed to Account for Disclosed Structure