Crafting Composition Claims: Federal Circuit Reverses ITC on Polycrystalline Diamond Compact Patent Eligibility
Highlights
The U.S. Court of Appeals for the Federal Circuit recently reversed an International Trade Commission decision that found certain composition claims for a polycrystalline diamond compact patent ineligible
This ruling provides valuable insights for companies drafting composition of matter claims in materials science, particularly when the claims involve measurable properties that reflect material structure
Companies drafting composition of matter claims should define a specific, non-natural material with measurable parameters, provide detailed specification support for enablement, and link measurable properties to structural features
In a significant decision for the materials science and patent law communities, the U.S. Court of Appeals for the Federal Circuit has overturned a ruling by the International Trade Commission (ITC) that found certain claims of a polycrystalline diamond compact (PDC) patent ineligible under U.S. patent laws. The case, US Synthetic Corp. v. International Trade Commission, decided on Feb. 13, 2025, offers important guidance on the patentability of composition of matter claims involving measurements of natural properties.
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