Patent Case Watch

Patent opinions from the Eastern District of Texas and the U.S. Court of Appeals for the Federal Circuit

Weekly Digest

Infringement

Infringement is the making, using, selling, offering to sell, or importing of something that falls within the scope of a patent claim. Proving it requires showing that the accused product or process contains every limitation of at least one claim, either literally or under the doctrine of equivalents. Because the comparison is made against the claim as construed, infringement rulings frequently follow directly from a claim construction order and turn on a single disputed limitation. The opinions collected here address direct infringement by an accused product, the sufficiency of infringement contentions and expert analysis, and the evidence needed to establish that an accused instrumentality practises each element of a claim.

1,110 opinions and orders, showing 401–600.