Pfizer Files Two Petitions for IPR of Chugai Pharmaceutical's Protein Purification Patents - Big Molecule Watch

Pfizer, Inc. has filed two petitions for IPR of Chugai Pharmaceutical’s patents:  IPR2017-01357 on U.S. Patent 7,332,289 and IPR2017-01358 on U.S. Patent 7,927,815.  According to the petitions, both patents are directed to methods for purifying antibodies.  The petitions do not identify a particular product that may use the patented methods.


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