Sherwin-Williams IP Hinges On Old PPG Patent, Jurors Told

By Matthew Santoni ( March 1, 2022, 8:15 PM EST) -- A 29-year-old patent will be key to determining whether PPG Industries copied a Sherwin-Williams Co. can coating that avoided a questionable chemical known as bisphenol A or whether Sherwin-Williams was copying PPG's earlier product, attorneys told a jury in Pittsburgh's federal court Tuesday. ...

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