Patent Trial & Appeal Board (PTAB) Proceedings

Ropes & Gray’s intellectual property litigation group is renowned for its PTAB expertise. Having successfully navigated hundreds of proceedings on behalf of patent owners and patent challengers alike — including some of the seminal cases on administrative trial practices — Ropes & Gray leverages unparalleled forum expertise, insights and resources for its clients.


Ropes & Gray is home to one the country’s most experienced and successful PTAB trial practice groups. Likewise, we have been at the forefront of these proceedings since their inception, filing the first ever challenge to a business method software patent in CBM2012-00001. This CBM challenge resulted in a final written decision that ordered the cancellation of all challenged claims. Furthermore, the Group has experience across a wide-range of technologies, from complex signaling protocols and consumer electronics devices to high-value pharmaceuticals and medical devices. 

Deep Bench. Ropes & Gray has a deep bench of legal professionals who know the ins-and-outs of the PTAB and know how to win there. The IP litigation team consists of more than 65 attorneys and Ph.D.-level technical advisors who have contributed to our PTAB success, including more than a dozen attorneys who have argued before the Board.

Practical Firsthand Experience. Ropes & Gray’s team has been involved in PTAB trials since the moment of their inception, and accordingly knows firsthand the strategies and arguments that work before the Board, and more importantly, given our consistent presence, the evolution of the agency away from trial practices that are no longer effective. We are able to draw on our extensive library of briefs, petitions and decisions to address many of the questions that arise in our ongoing PTAB matters, as well as in related ITC and district court proceedings. 

Success for Both Petitioners and Patent Owners. Ropes & Gray has a record of continuous success in final written decisions before the PTAB for both petitioners and patent owners that no other firm can match. On behalf of petitioners, our attorneys have invalidated 94% of claims ruled on by the Board. We have also prevailed on behalf of numerous patent-owner clients at the PTAB, preventing review and findings of unpatentability of key litigated claims. Our deep experience on both sides of the “v.” gives us invaluable insights that we leverage on behalf of our clients. 

Cross-Forum Team. A successful PTAB defense must include tightly integrated, cross-forum strategy. Ropes & Gray’s PTAB team includes patent-focused district court litigators who are also registered to practice at the USPTO and technical subject matter specialists. Our litigators are regular members of the courtroom and International Trade Commission (ITC) trial teams, and understand the issues that can arise in coordinating district court, ITC and PTAB challenges. This coordination has become crucial as PTAB proceedings become an increasingly critical phase of patent disputes. 

Industry Experience. Our attorneys have handled PTAB proceedings for clients in all industries including electronics, computer sciences, financial services, semiconductors, medical devices, and pharmaceuticals. For example, our attorneys were involved in some of the first challenges to semiconductor patents, and were also involved in an IPR proceeding related to the first patent challenges concerning marketed biologics. 

PTAB Appeals. With PTAB appeals exceeding 50% of the Federal Circuit’s docket, successful advocates must not only stand out from the crowd, but also build winning trial records from Day 1. The Ropes & Gray PTAB team has extensive experience appearing before and winning at the Federal Circuit, and understands how to create a record at the PTAB that will withstand appellate review.

Practice Highlights

  • We understood and embraced PTAB trials from day one, representing the petitioner in the first proceeding to result in a final written decision (a win for our client).
  • Our attorneys also successfully navigated the first (and one of only two such cases) inter partes review to date that included live testimony (another client win).
  • We have successfully defended PTAB judgements on appeal to the Federal Circuit, and overturned others in favor of some of the world’s most renowned innovators.
  • Ropes & Gray continues to be a leader at the PTAB, according to data released by Docket Navigator and analyzed by Managing Intellectual Property. Our firm was ranked third among Petitioner Law Firms in 2021, and in the top five among Petitioners and Patent Owner Law Firms combined. 
  • To date, Ropes & Gray attorneys have argued hundreds of PTAB oral arguments, and have been counsel of record on more than 650 PTAB trial proceedings, on behalf of both petitioners and patent owners.
  • On behalf of petitioners, we have invalidated 94% of claims ruled on by the Board.

Our Experience

Examples of success before the Patent Trial and Appeal Board (PTAB):

  • We achieved a significant victory for Square as petitioner in multiple IPRs filed against AnywhereCommerce. The PTAB found all challenged claims of AnywhereCommerce’s three patents unpatentable. Following our wins at the PTAB, AnywhereCommerce did not appeal the decision, withdrew its suit in the Northern District of California, and walked away from its claims. 
  • We represented BorgWarner in an IPR filed by Schaeffler, which was successfully denied institution by the Board. The patent is directed to a variable cam timing phaser for automotive engines.
  • We successfully defended a leading medical device company as patent owner in four IPRs against Baxter Healthcare related to anti-microbial fluid caps. All four of the petitions were denied institution. This decision was significant, as the patent family had been challenged in previous PTAB proceedings, in which the same grounds had been instituted, but settled before a final written decision.
  • We represented a leading information technology company against Mobile Telecommunications in an IPR proceeding concerning wireless communication systems. The Board found in favor of our client and invalidated as obvious all of the challenged claims of the asserted patent.
  • We represented petitioner GN Hearing in filing two IPRs relating to hearing aid technology. At final written decision, the board found the commercially relevant claims unpatentable at final written decision.
  • We successfully represented Seakeeper in dismissing two IPR petitions concerning two patents related to a cooling apparatus for transferring heat from and cooling one or more heat generating components that support or drive a flywheel or other spinning member. 

Examples of PTAB judgments that we have successfully defended at the Federal Circuit:

  • On behalf of Emerson Electric as petitioner, we have invalidated over 100 claims across SIPCO’s patent portfolio in multiple proceedings at the PTAB, and secured Federal Circuit wins on appeals from PTAB final written decisions, as well as a win before the Supreme Court vacating and remanding the case to the Federal Circuit.
  • We successfully defended Sony at the Federal Circuit in relation to a PTAB appeal involving a patent directed to an element of a video processing system for cable television, which petitioner ARRIS successfully challenged at the PTAB. The Federal Circuit vacated the PTAB’s adverse decision, and on remand, the PTAB’s decision was reversed, securing a win for Sony.
  • We filed two petitions on behalf of Google adverse to Spring Ventures relating to Google’s “I’m Feeling Lucky” feature. All claims were subsequently found unpatentable by the Board. At the Federal Circuit, the Court affirmed the PTAB’s findings in favor of Google.
  • We represented petitioner Multi Packaging Solutions in an IPR review challenging a patent related to ultrasecure card packaging. All 30 claims were found unpatentable by the Board, which was subsequently affirmed by the Federal Circuit in MPS’ favor.
  • We filed inter partes review petitions on behalf of a leading consumer electronics company against Conversant Wireless challenging two patents directed to graphical user interfaces for computing devices. The Board found all challenged claims unpatentable, which was affirmed by the Federal Circuit.
  • We filed IPRs on behalf of Activision Blizzard challenging three patents relating to broadcasting information in computer networks and resulting in the Board finding 35 claims unpatentable. At the Federal Circuit, these findings were successfully affirmed.
  • We filed four inter partes review petitions on behalf of Samsung challenging four patents relating to touch screens. The Board issued final written decisions finding all challenged claims unpatentable on two separate grounds each. The Federal Circuit subsequently affirmed the PTAB’s findings and denied rehearing.
  • On behalf of Samsung adverse to Affinity Labs, we filed IPR petitions challenging three litigated patents generally relating to the delivery of Internet media content to a portable device. The PTAB issued final written decisions finding all challenged claims unpatentable, which were affirmed on appeal.
  • We represented SAP, as co-counsel, in a CBM trial challenging a Versata patent involving product pricing in multi-level product and organizational groups. This CBM trial – the very first to be initiated – went to oral argument before the Board on April 17, 2013 on the issue of invalidity under 35 U.S.C. § 101, and the Board issued a final written decision in favor of SAP finding every challenged claim invalid for failure to claim patentable subject matter under § 101. The Board’s decision was affirmed on appeal by the Federal Circuit and the Supreme Court denied Versata’s petition for certiorari.
The supremely proactive Ropes & Gray is a perennial front-runner in adapting to changes on the market. It has demonstrated this to superb effect through its myriad successes in inter partes and covered business method reviews since the enactment of the America Invents Act.
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