Last Updated: April 23, 2026

Litigation for Patent 8,557,244

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Patent Trial and Appeal Board Cases for Patent 8,557,244

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Patent	Petitioner	Status	Filing Date	Accorded Filing Date	Patent Owner	Trial Type	Trial Number	Decision Date	Inventor	Document Download
8,557,244	Celltrion Inc. et al.	⤷ Start Trial	2017-03-15	03-17-2017		Inter partes review	⤷ Start Trial	10-02-2017		⤷ Start Trial
8,557,244	Pfizer, Inc.	⤷ Start Trial	2017-04-27	04-27-2017		Inter partes review	⤷ Start Trial	11-06-2017		⤷ Start Trial
>Patent	>Petitioner	>Status	>Filing Date	>Accorded Filing Date	>Patent Owner	>Trial Type	>Trial Number	>Decision Date	>Inventor	>Document Download

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