The Federal Circuit affirmed the decision of the Patent Trial and Appeal Board holding some claims of International Business Machines Corporation’s patent that relates to systems and methods for single sign-on operations unpatentable as obvious over prior art. And the board affirmed the board’s decision holding some patent claims not unpatentable, on Zillow Group Inc. and Zillow Inc.'s cross-appeal.
Learn more about Bloomberg Law or Log In to keep reading:
See Breaking News in Context
Bloomberg Law provides trusted coverage of current events enhanced with legal analysis.
Already a subscriber?
Log in to keep reading or access research tools and resources.