Ex parte reexamination (EPRx) comes with risks and rewards for both patent challengers and patent owners. Patent challengers enjoy a lower threshold for institution and avoid the estoppel risk of other post-grant proceedings...more
Ex parte reexamination (EPRx) is a powerful tool that allows any party — including the patent owner — to request that the United States Patent and Trademark Office (USPTO) reassess the validity of an issued patent based on...more
In the mid-2000s, the U.S. Patent Office (USPTO) determined that reexaminations would be more consistent and legally correct if performed by a centralized set of experienced and specially trained Examiners. As a result, the...more
Ex parte reexamination proceedings have been available for over 40 years. The reexamination statutes, Public Law 96-517 of July 1, 1981 (also known as the Bayh-Dole Act), included 35 U.S.C. § 303, which codified, in part,...more
This month we take a deeper dive into petitions practice for cases handled by the Central Reexamination Unit (CRU). As noted in our previous article, issues of first impression sometimes arise in cases before the CRU where...more
The Federal Circuit recently upheld the USPTO’s authority under the estoppel provision 37 C.F.R. § 42.73(d)(3)(i) to prohibit a patent owner from obtaining patent claims that are not patentably distinct from claims previously...more
In 2023, global investments in energy transition projects surged to approximately $1.7 trillion. This unprecedented investment level underscores the transformative shift toward cleaner energy sources and technologies....more
Takeaways: - Patentees must demonstrate “unequivocal intent” to broaden claims in a broadening reissue. - To establish a broadening reissue, a patentee’s actions must align with their words within the two year statutory...more
Our Texas Patent Litigation Monthly Wrap-Up for July 2024 covers three decisions of interest from the Eastern District of Texas granting motions related to subject matter eligibility, stays pending inter partes review (IPR),...more
Before Bryson, Lourie, and Reyna. Appeal from the United States Patent and Trademark Office (“PTO”), Patent Trial and Appeal Board (“Board”). Summary: Estoppel under 37 C.F.R. § 42.73(d)(3)(i) only applies to obtaining new...more
In our PTAB Spotlight Series, attorneys will share their valuable insights on PTAB practice today, the challenges and opportunities clients face, and the trends practitioners should follow....more
The recent resurgence in ex parte reexamination demonstrates the importance of this post-grant review vehicle. It has become particularly important for patent challengers who may be estopped from requesting inter partes...more
A review of 2023 reveals it was an active and impactful year in shaping the policy and practice before the Patent Trial and Appeal Board (PTAB or Board) at the U.S. Patent and Trademark Office (USPTO). In fact, all three...more
This Year in Review synthesizes key events and decisions from 2023 into a digestible guide that we hope will serve as a helpful reference for those who practice before, or adjacent to, the PTAB. As in the past, many of our...more
This case addresses how Patent Term Adjustment (PTA) interacts with obviousness-type double patenting (ODP). Background - Cellect sued Samsung Electronics, Co. for infringement of four patents. Subsequently, Samsung...more
The Patent Trial and Appeal Board (“PTAB”) recently published a revised PTAB Oral Hearing Guide (August 2023) updating prior guidance on hearings. The revised Guide includes changes to: 1. Remote participation in PTAB...more
In decisions rare of their kind, the U.S. Patent and Trademark Office (“USPTO”) terminated two ex parte reexaminations in view of inter partes review (“IPR”) proceedings initiated by a different party. The decisions represent...more
Varian filed two petitions for IPR of BMI’s ’096 patent, which the Board instituted. Elekta filed copycat petitions and successfully joined Varian’s two instituted IPRs. A previously filed, parallel ex parte reexamination on...more
As part of the recovery from the global COVID-19 pandemic, the U.S. Court of Appeals for the Federal Circuit took steps to return to normal operations. It began requiring live oral arguments in August 2022 and, by November,...more
The US Patent & Trademark Office (PTO) terminated a pending ex parte reexamination after finding that the challenger was estopped because the prior art references could have been raised in a prior inter partes review (IPR)....more
On November 16, 2022, the United States Patent and Trademark Office (“PTO”) vacated a reexamination proceeding because the patent challenger relied on unpatentability grounds that reasonably could have been raised in an...more
Best Medical International, Inc. v. Elekta Inc., Appeal Nos. 2021-2099, -2100 (Fed. Cir. Aug. 26, 2022) - In this week’s Case of the Week, the Federal Circuit addressed issues of jurisdiction where a challenged claim was...more
This post reviews three July 2022 opinions from the Western and Eastern Districts of Texas resolving motions to stay. The first case involves the denial of a stay pending reexamination proceedings issued by the...more