Case Number:

PGR2022-00010

Case Type:

PGR

Status:

Final Written Decision

Petitioner:

TOKYO OHKA KOGYO CO., LTD.

Patent Owner:

Tech Center:

1. Filed: November 22, 2021 00:00

   Coverage

   1. June 02, 2023

      Fujifilm Loses Patent Claims For Lack Of Written Description

      The Patent Trial and Appeal Board has held that claims in a Fujifilm patent on a cleaning composition for semiconductors was invalid, finding that it didn't have enough of an adequate description to warrant patent protection.

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