Jury-Instruction Error Gives Container-Tech Patents New Life (1)

March 27, 2024, 9:17 PM UTCUpdated: March 27, 2024, 10:05 PM UTC

An error in a Massachusetts federal court’s jury instructions over patents for tamper-resistant plastic containers prompted an appeals court to toss the verdict’s invalidity findings and order a new trial on the issue.

Inline Plastics Corp. failed, however, to win a judgment that the five patents asserted against Lacerta Group LLC aren’t invalid, according to a precedential opinion issued Wednesday by the US Court of Appeals for the Federal Circuit. The court also rejected Inline’s arguments for a new trial on infringement.

After the district court granted Inline summary judgment of infringement on a subset of patent claims, a Boston ...

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