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PTAB Institutes IPRs of Tocilzumab Patents Challenged by Celltrion

​​​​​​​On August 31, 2022, the PTAB instituted two inter partes reviews of Chugai and Roche’s tocilizumab patents challenged by Celltrion, adding to the growing list of IPRs instituted against the tocilizumab patent estate....more

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