The Federal Circuit issued a decision in In re Cellect on August 28, 2023 which may have far-reaching consequences during the assertion of one or more patents that are related members in a patent family, and that include claims that may be subject to an argument for invalidity for obviousness-type double patenting (ODP). The Federal Circuit found that when two or more related family member patents in a patent family cover similar enough or overlapping inventions, ODP can be applied to invalidate one of the patents where the related family member patents expire at different times due to …
