Case Law Review: Volume 11, No. 8
Hauptman Ham’s September 2025 Case Law Review examines four significant intellectual property decisions involving design patent infringement, the doctrine of equivalents, patent claim construction, and prosecution laches. This issue discusses how prosecution history disclaimer applies to design patents, when cancellation of one claim can narrow the scope of another under the doctrine of equivalents, why distinct claim terms must be given different meanings, and how the timing of an alleged infringer’s investment affects a prosecution laches defense.