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Amgen files suit against Hospira and Pfizer

May 1, 2020

Amgen filed suit against Hospira and Pfizer, alleging infringement of US patent 10,577,392, relating to the manufacture of Neupogen®. Interestingly, the patent was only granted on March 03, 2020, nearly 2 years after Hospira launched Nivestym®.

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