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DATAMIZE, LLC v. PLUMTREE SOFTWARE, INC.
United States Court of Appeals, Federal Circuit (2005) | 417 F.3d 1342
TL;DR: A patent claim for a software system requiring an "aesthetically pleasing" user interface was held invalid. The court found the term purely subjective and lacking any objective standard, making the claim's scope impossible for the public to determine.
Legal Significance: Establishes that purely subjective claim terms, such as "aesthetically pleasing," render a utility patent claim indefinite under 35 U.S.C. § 112 unless the patent provides an objective standard for measuring the term, thereby providing an "objective anchor."