PTABWatch Blog

http://www.ptabwatch.com/author/wmerkel/

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

  • Federal Circuit Affirms PTAB Upholding Patent Claims In what has been a rare outcome to date, the Federal Circuit in Apotex v. Wyeth, dkt. no. 2015-1871 (Fed. Cir. Aug. 16, 2016) affirmed in a non-precedential decision the PTAB’s final written decision in IPR2014-00115 that the challenged claims were not unpatentably obvious over three references.  At trial, the PTAB found that Apotex did not sustain its burden of showing by a preponderance of the evidence that there was a reason to substitute the claim-recited antibiotic for a prior... More
  • Priority Claims Unchallenged In Prosecution Can Be Weak Links IPR2015-00291 decided a petition filed by Daiichi Sankyo Co. Ltd. against USPN 8,168,181 owned by Alethia Biotherapeutics, Inc.  The ‘181 patent issued from a continuation-in-part of the U.S. national phase of a PCT application and contains claims drawn to methods of impairing osteoclast differentiation, useful in treating various bone diseases.  The Board denied the Patent Owner’s priority claim and found an attempt to antedate intervening art inadequate, leading to a holding that the ‘181 claims were unpatentable under 35 U.S.C.... More
  • Supporting Evidence, Not Counter-Punching, May Be Needed In An IPR In IPR2015-01537, Momenta petitioned for IPR of claims 1-15 of U.S. Patent No. 8,476,239 owned by Bristol-Myers Squibb (BMS) on grounds of obviousness over three references: Cohen, Shire, and Carpenter.  Petitioner also relied on expert testimony.  The claims recite formulations containing CTLA4Ig, which is a stabilized form of a negative regulator (checkpoint inhibitor) of the immune system useful in treating autoimmune disease and rheumatoid arthritis, for example.  The Patent Owner opposed institution by attacking the Petitioner’s position as failing to... More
  • PTAB Grants Motion to Amend Claims In IPR2015-00208, Shinn Fu petitioned for IPR of USPN 6,681,897 owned by Tire Hanger.  All five claims of the patent were drawn to methods of supporting vehicle wheels removed from a vehicle while on a service lift, wherein the supports would allow technicians to remove and replace the wheels without risking back injury by bending.  By all accounts, Shinn Fu mounted a strong attack against all claims in the ‘897 patent, and the PTAB instituted review.  Foregoing a dogged defense... More
  • Avoid Stumbling Before You Get To The Merits Of A PTAB Appeal In Harmonic Inc. v. Avid Technology, Inc., the Federal Circuit concluded that the PTAB’s practice of denying IPR institution on redundant grounds is appropriate.  The Court’s decision is important because it should counsel prospective petitioners to carefully select grounds on which to petition review and offer an explanation in the petition as to why multiple grounds are not redundant. IPR petitioner Harmonic appealed two aspects of the PTAB’s final written decision in IPR2013-00252.  First, Harmonic sought relief from the determination that... More
  • Put Away The Blunderbuss – Attention to Detail and Thoroughness Are Needed in Preparing an IPR Petition Boehringer Ingelheim filed three petitions attacking patents generally drawn to methods of treating RA patients with rituximab.  The decisions on two of those petitions, i.e., IPR2015-00415 and IPR2015-00417, have been addressed elsewhere.  In IPR2015-00418, the PTAB declined to institute an IPR on the petition’s challenges to the lone claim of U.S. Patent No. 8,329,172, drawn to a method of treating low-grade non-Hodgkins lymphoma (LG-NHL) with CVP tri-chemical chemotherapy and rituximab maintenance therapy.  The petition contained a single anticipation ground and... More
  • Gamble At Your Own Risk – The Danger Of Petition Overkill Boehringer Ingelheim filed the petition at issue in IPR2015-00417 concurrently with the petitions at issue in IPR2015-00415 and IPR2015-00418 to challenge patents protecting methodologies for treating rheumatoid arthritis (RA) with rituximab, an FDA-approved antibody for treating certain cancers.  The IPR2015-00417 petition specifically challenged the fourteen claims of U.S. Patent No. 7,976,838, which are drawn to methods of administering rituximab to RA patients not responding to TNF-α inhibitors, a subset of RA patients.  The PTAB instituted an IPR of two of... More
  • Grinning Patentees Get A Mulligan Filed concurrently with the petitions at issue in IPR2015-00417 and IPR2015-00418, Boehringer Ingelheim filed the petition at issue in IPR2015-00415 seeking review of U.S. Patent No. 7,820,161 owned by Genentech and Biogen Idec.  The Board’s institution decision steadily whittled down Boehringer’s varied attacks on the patent.  Ultimately, IPR was granted on 2 of the 36 obviousness grounds in the petition (additional grounds were summarily denied for failure to identify the ground with particularity), with the two surviving grounds implicating half... More