PTABWatch Blog

PTABWatch, provided by Marshall, Gerstein & Borun LLP, analyzes and reports recent developments concerning Post-Grant Proceedings at the Patent Trial and Appeal Board (PTAB) of the U.S. Patent and Trademark Office (USPTO), including Inter Partes Review (IPR), Post Grant Review (PGR), and Covered Business Method (CBM) proceedings.

Recent Blog Posts

  • Join the Party! CAFC Hears IPR Appeal From Parties That Were Time-Barred From Filing Petition Research Corporation Technologies, Inc. (RCT) sued Mylan Pharmaceuticals, Inc. (Mylan), Breckenridge Pharmaceutical, Inc. (Breckinridge), and Alembic Pharmaceuticals Ltd. (Alembic), in federal district court, accusing them of infringing United States Reissued Patent No. RE38,551. The patent claims pharmaceutical compositions useful in the treatment of epilepsy and other central nervous system disorders. Within one year of being served with the infringement complaint, Breckenridge alone petitioned the PTAB to institute inter partes review of the patent, but the PTAB denied the petition on... More
  • CAFC: PTAB Abused Its Discretion When It Refused to Admit Expert’s Trial Testimony In Ultratec, Inc. v. CaptionCall, LLC, No. 2016-1706 (Fed. Cir. Aug. 28, 2017), the Federal Circuit vacated and remanded multiple IPR decisions where the PTAB failed to consider material evidence and failed to explain its decisions to exclude the evidence. Ultratec and CaptionCall are currently litigating in both district court and before the PTAB.  Ultratec sued CaptionCall for infringement in the Western District of Wisconsin where a jury found the patents infringed and not invalid.  Five months after the verdict, the... More
  • Kyle Bass Gets Fresenius’ Diprivan Claims Canceled in IPR On June 7, 2017, the PTAB issued a final written decision in IPR 2016-00254 canceling claims in a Fresenius Kabi USA, LLC (Fresenius) patent covering Diprivan®. The PTAB instituted the IPR in response to a petition filed by hedge fund manager Kyle Bass and his colleague Erich Spangenberg. Diprivan® is the commercial name for propofol, an intravenous anesthetic agent used during surgery and other medical procedures. The Fresenius patent claims pharmaceutical formulations of propofol that are stored in containers having nonreactive,... More
  • One-Year Time Bar Does Not Apply to a Request for Joinder of IPR Proceedings Teva Pharmaceuticals USA, Inc. (“Teva”) filed a Petition, seeking an IPR of claims 1–20 of Allergan’s U.S. Patent No. 8,642,556. [IPR2017-00579, Paper No. 9]  Along with the Petition, Teva filed a Motion for Joinder to join Mylan Pharmaceuticals Inc. v. Allergan, Inc., IPR2016-01129.  This blog has previously reported on the topic of joinder in IPR Petitions here and here. Teva’s Petition was not timely, having been filed more than one year after Allergan filed a complaint alleging infringement of the ‘556... More
  • Coalition for Affordable Drugs Fails to Knock Out Biogen’s Tecfidera® Patent On March 21, 2017, the PTAB refused to cancel claims of a Biogen MA Inc. (Biogen) patent covering multiple sclerosis drug Tecfidera® during IPR2015-01993, which was instituted in response to a petition filed by the Coalition for Affordable Drugs V LLC (CFAD), a group started by hedge fund manager Kyle Bass. Biogen’s U.S. Pat. No. 8,399,514 claims methods of treating patients for multiple sclerosis (MS). Each claim requires the administration of a dose of about 480 milligrams (mg) per day of... More
  • Your Supplemental Evidence is Timely, but is it Relevant to a Claim at Issue? PTAB Will Decide. Once a trial has been instituted at the PTAB, a party seeking consideration of supplemental evidence may file a motion in accordance with the following requirements: (1) the request for the authorization to file a motion to submit supplemental information must be made within one month of the date the trial was instituted; and (2) the supplemental information must be relevant to a claim for which the trial was instituted.  37 C.F.R. § 42.123(a). Mere satisfaction of these requirements for... More
  • Federal Circuit to PTAB (Again) – Explain Yourself!! The Federal Circuit has once again vacated and remanded a PTAB final written decision on the basis that the PTAB did not adequately explain its reasons for finding a claimed invention obvious.  In In re Nuvasive, Appeal No. 15-1670 (Fed. Cir. Dec. 7, 2016), the Federal Circuit reviewed the PTAB’s final written decision in IPR2013-00506 that concluded various claims of  NuVasive, Inc’s U.S. Patent No. 8,361,156 were invalid as obvious over a combination of prior art references.  The patent claims... More
  • Prior Art Made Available at Members Only Gatherings May Not Satisfy “Publically Accessible” Requirement Two recent PTAB decisions highlight important developments in qualifying a publication as a reference, available as prior art.  In one case, the PTAB concluded that a printed catalog did not qualify as a printed publication prior art because it was distributed only at a private tradeshow to persons not necessarily skilled in the art.  In the other case, the PTAB concluded that a video and associated slide presentation did not qualify as printed publications because these materials were distributed only... More
  • IPR Institution Denied Because Petitioner Used Hindsight Bias to Formulate Arguments On August 23, 2016, the PTAB denied Mylan Laboratories Limited’s (Mylan) petition for IPR (IPR2016-00627) against a patent owned by Aventis Pharma S.A. (Aventis). In doing so, the PTAB offered guidance regarding what is required to successfully make out a claim of obviousness regarding a new chemical compound. In particular, the PTAB’s decision offers insight into the threshold a petitioner will need to meet in order to establish that a person of ordinary skill in the art would have recognized... More
  • Been There, Done That: Petitioners Should Find Art and Arguments Not Previously Considered During Prosecution This blog has previously explained on July 23, 2015, December 10, 2015, and December 16, 2015 why it is important for parties to AIA trials to carefully consider the patent prosecution history.  Under 35 U.S.C. § 325(d), the Board has discretion to deny an AIA trial if “the same or substantially the same prior art or arguments previously were presented to the Office.”  The Board recently exercised that discretion in denying an inter partes review petition and, in doing so, provided... More