Justia Patents Opinion Summaries

Medytox’s patent is directed to the use of an animal-protein-free botulinum toxin composition that exhibits a longer-lasting effect compared to an animal protein-containing botulinum toxin composition and purportedly can be used to treat both cosmetic and non-cosmetic conditions. Galderma requested post-grant review of claims 1–10, which the Patent Trial and Appeal Board granted. Medytox filed a non-contingent motion to amend seeking to cancel claims 1–10 and substitute claims 11–18 and requested that the Board issue a Preliminary Guidance. Galderma argued that the claims added new matter because the claims covered compounds with a 16-week responder rate between 50-100% but the specification only disclosed responder rates of up to 62%.Reversing its Preliminary Guidance, the Board found that the substitute claims impermissibly introduced new matter with the inclusion of the responder rate limitation and failed to meet the requirements for revised motions to amend; that the proposed substitute claims were unpatentable for a lack of written description; and that the full scope of the claims was not enabled.The Federal Circuit affirmed, upholding the Board’s claim construction of the responder rate limitation as a range. The Board provided adequate explanation for its enablement finding. The Board’s revision of its claim construction of the responder rate limitation made between its Preliminary Guidance and final decision was not arbitrary and capricious, depriving Medytox of a full and fair opportunity to litigate. View "Medytox, Inc. v. Galderma S.A." on Justia Law