Patent Law Practice Center

Goeddel V. Sugano: What’s The Difference Between “Envisioning” An Invention And Being “In Possession” Of The Invention?

The following post was written by Gerald M. Murphy, partner at Birch, Stewart, Kolasch & Birch, LLP and Practice Center Contributor.

In Goeddel v. Sugano, the Court of Appeals for the Federal Circuit (CAFC) has provided more guidance as to what is necessary for a sufficient “written description” of an invention, this time for a true “biotech” invention, in the context of a motion for benefit of priority in an interference.  This case involved two interferences; one directed to DNA encoding human fibroblast interferon (hFIF) unaccompanied by a hFIF presequence (mature hFIF) and one directed to a composition comprising  non-glycosylated hFIF.  Sugano filed a motion for benefit of its Japanese priority application (Sugano priority application) and was granted priority by the Board of Patent Appeals and Interferences (the Board) in both interferences.  Goeddel appealed that decision on the grounds that the Sugano priority application did not constitute a constructive reduction to practice because it did not enable the Counts and did not provide a sufficient written description of the Counts.  The Federal Circuit reversed on the ground that the Sugano priority application did not provide a sufficient written description of the Count because the inventors were not “in possession” of the invention. (more…)