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Big Pharma Tells Justices To Keep Assignor Estoppel

By Andrew Karpan ( April 1, 2021, 10:18 PM EDT) -- The drug industry's top lobbying group has warned the U.S. Supreme Court that if it grants a surgical device company's bid to abolish the doctrine of assignor estoppel, which bars those who sell or assign patents to others from challenging their validity, it would be unfair to drug companies that buy patents with the intent of enforcing them.  ...

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