Palomar Loses IPR Estoppel Bid In Manufacturing Patent Fight

Law360 (May 5, 2020, 9:22 PM EDT) -- Palomar Technologies Inc. can't block a rival's attempt to invalidate its manufacturing patent based on prior art not raised in an inter partes review, a Massachusetts federal judge has ruled, narrowly finding that the rival couldn't have reasonably found those references in an earlier search.

In a 32-page order issued Monday, U.S. District Judge F. Dennis Saylor IV denied Palomar's bid to bar rival MRSI Systems LLC from arguing that Palomar's patent related to high-precision manufacturing was invalid based on two prior art references.

Palomar had argued that because MRSI failed to raise those references — a patent known as Harigane...

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