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Patent Infringement Written Descriptions CAFC

Bradley Arant Boult Cummings LLP

The Federal Circuit Calls for a Replay Allowing Sonos Another Opportunity at Google

The Federal Circuit’s recent decision in Google LLC v. Sonos, Inc. (24-1097) offers a compelling look at the evolving doctrine of prosecution laches, the written description requirement, and the practical realities of patent...more

McDermott Will & Schulte

Specification controls: Written description must be clear

The US Court of Appeals for the Federal Circuit reversed a district court’s decision upholding patent validity, finding that the subject patent’s specification clearly established that the written description failed to...more

Alston & Bird

Patent Case Summaries | Week Ending August 8, 2025

Alston & Bird on

Mondis Technology Ltd., et al. v. LG Electronics Inc., et al., Nos. 2023-2117, -2116 (Fed. Cir. (D.N.J.) Aug. 8, 2025). Opinion by Hughes, joined by Taranto and Clevenger....more

Knobbe Martens

An Examiner’s Allowance Does Not Create an “Especially Weighty” Presumption of Written-Description Support

Knobbe Martens on

MONDIS TECHNOLOGY LTD., HITACHI MAXELL, LTD., NKA MAXELL HOLDINGS, LTD., MAXELL, LTD.  v.  LG ELECTRONICS INC., LG ELECTRONICS USA, INC. - Before Taranto, Clevenger, and Hughes.  Appeal from the United States District Court...more

Morgan Lewis

Federal Circuit Applies Prosecution History Estoppel Based on Claim Cancellation

Morgan Lewis on

The US Court of Appeals for the Federal Circuit recently held that cancellation of a claim during prosecution may give rise to prosecution history estoppel, precluding the patentee from recapturing the surrendered subject...more

International Lawyers Network

Can Design Patents Be Limiting in Enforcement?

Suppose that you have an invention disclosure for a design of an article that you want to protect?  When you review the invention disclosure, you notice that the design is ornamental, for example a pattern, on an article such...more

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