Case Law Review: Volume 11, No. 5
Hauptman Ham’s May 2025 Case Law Review highlights three significant Federal Circuit decisions involving patent prosecution history, means-plus-function claim interpretation, and color trademarks. The review explains how prosecution disclaimers can carry across related patent applications, why the term “payment handler” was treated as a means-plus-function limitation, and what evidence is required to establish that a color mark identifies a single source rather than a generic product category.