When Is There Standing To Appeal A PGR Final Written Decision?

In Altaire Pharm., Inc. v. Paragon Biotek, Inc., Case No. 2017-1487 (Fed. Cir. May 2, 2018), the Federal Circuit reversed in part a PGR final written decision that upheld the patentability of challenged claims, and determined that a risk of a future lawsuit for patent infringement may be sufficient to establish Article III standing for the appeal.

Under Supreme Court precedent, Article III standing requires: (1) a concrete and particularized injury, (2) caused by the challenged conduct, (3) which can be redressed by a judicial decision. Spokeo, Inc. v. Robins, 136 S. Ct. 1540 (2016). Ironically, a party that has not been charged with infringement may have sufficient standing to file a petition with the PTAB, but lack standing to appeal the PTAB's final decision to an Article III court. For example, in Phigenix, Inc. v. ImmunoGen, Inc., (discussed here), the court determined that the petitioner lacked standing to appeal because its alleged "hypothetical