On remand from the Federal Circuit, the PTAB ruled that a patentee’s certificate of correction—issued after the Board invalidated the claims in a final written decision—could not be applied retroactively. After the IPR...more
Honeywell owns U.S. Patent 9,157,017, which claims automotive air-conditioning systems. The application to the ’017 patent had originally described and recited claims for flouroalkane compounds for use in refrigeration...more
A panel at the Patent Trial and Appeal Board (PTAB) recently held that a certificate of correction fixing an error in a patent’s claim of priority did not apply retroactively in light of an already issued final written...more
Addressing limitations on the role of the Patent Trial and Appeal Board (PTAB), the US Court of Appeals for the Federal Circuit explained that the PTAB erred in rejecting a patent owner’s request to file a request for a...more
The PTAB Cannot Approve or Deny Certificates of Correction - In Honeywell International, Inc. v. Arkema Inc., Arkema France, Appeal Nos. 2018-1151, -1153, the Patent Trial and Appeal Board (“Board”) does not have the...more
Honeywell Int’l v. Arkema, Inc., Appeal No. 2018-1151, -1153 (Fed. Cir., October 1, 2019) - Arkema filed two petitions for post-grant review of a Honeywell patent pertaining to fluoroalkene compounds used in refrigerator...more
HONEYWELL INTERNATIONAL, INC. v. ARKEMA INC., ARKEMA FRA NCE - Before Newman, Reyna, and Hughes. Appeal from the Patent Trial and Appeal Board - Summary: The Patent Trial and Appeal Board (“Board”) does not have the...more