Case Number:

IPR2022-00218

Case Type:

IPR

Status:

Final Written Decision - Appealed

Petitioner:

Sigray Inc.

1. Filed: November 18, 2021 00:00

   Coverage

   1. December 16, 2025

      PTAB Cuts X-Ray Patent Claims After Fed. Circ. Remand

      The Patent Trial and Appeal Board has found that three claims that Sigray Inc. challenged in a Carl Zeiss X-Ray Microscopy Inc. X-ray imaging patent were invalid after the Federal Circuit told it to take another look at the claims.

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