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Fresenius files IPR petitions challenging Chugai/Roche/Genentech rheumatoid arthritis patents

On August 18, 2021, Fresenius Kabi USA, LLC and Fresenius Kabi SwissBioSim GmbH (collectively, “Fresenius”) filed Petitions for Inter Partes Review of U.S. Patent No. 10,874,677 (IPR 2021-01336) and U.S. No. 5,80,264 (IPR 2021-01288) .  The ‘264 patent claims are directed to methods of treating rheumatoid arthritis patients using a…

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