Alterwan, Inc. v. Amazon.com, Inc., No. 22-1349 (Fed. Cir. Mar. 13, 2023)

From the Opinion

The passage below is extracted verbatim from the opening of the document. It has not been editorially summarized — consult the full opinion for the court's complete reasoning.

In this patent infringement action, the parties entered into a stipulation of non- infringement based on two of the district court’s claim construction rulings . Because the stipulation is ambiguous and therefore defective, we vacate and remand for further proceedings. BACKGROUND Appellant AlterWAN sued appellee Amazon for in- fringement of claims of two patents: U.S. Patent Nos. 8,595,478 (“the ʼ478 patent”) and 9,015,471 (“the ʼ471 pa- tent”).1 AlterWAN’s patents concern improvements to im- plementing wide area networks (“WANs”) over the Internet.