The General Hospital Corporation v. Sienna Biopharmaceuticals, Inc.

(United States Federal Circuit) – Vacating the Patent Trial and Appeal Board’s dismissal of an interference claim for lack of standing and remanding for further proceedings because the description of a method for removing hair using nanoparticles to damage hair follicles was a sufficient written description under the Patent Act because although the description only gave optical density rather than particles per ml, this was enough of a disclosure to convey to those skilled in the art that the inventor had possession of the claimed subject matter.