Over the past couple of years we have discussed the important role a broadening or narrowing reissue can play in proper portfolio development and resuscitation of a patent or patent family after invalidation in court or the...more
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
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 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