IBM v. Zillow (Fed. Cir., December 9, 2025) 2024-1170
This episode covers an opinion from the United States Court of Appeals for the Federal Circuit regarding a patent dispute between International Business Machines Corporation (IBM), the appellant, and Zillow Group, Inc., and Zillow, Inc. (Zillow), the cross-appellants. The appeal and cross-appeal stem from a decision by the Patent Trial and Appeal Board (Board) concerning the patentability of claims in IBM’s ’346 patent, which relates to single sign-on (SSO) operations. The court ultimately affirms the Board's decision, which had found certain claims unpatentable based on the prior art…
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