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Purdue Pharma defends petition for post-grant review of patent against Collegium Pharmaceutical Inc.

March 2024

Client(s) Purdue Pharma L.P.

Jones Day represented patent owner Purdue Pharma L.P. in a post-grant review (PGR) proceeding brought by petitioner Collegium Pharmaceutical Inc. relating to a patent directed to a pharmaceutical formulation containing gelling agent.

Collegium Pharmaceutical, Inc. v. Purdue Pharma LP et al., PGR2018-00048 (PTAB)

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