# Infringement

The unauthorized making, using, selling, or importing of a product or process that falls within the scope of a valid patent's claims. Infringement is determined by comparing each element of a patent claim to the accused product or process. If every element is present — literally or under the doctrine of equivalents — infringement exists.

**Full entry:** https://patentbrief.org/glossary/infringement

**All patent terms:** https://patentbrief.org/glossary

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_Source: PatentBrief — https://patentbrief.org. A plain-English glossary of US patent terms._