

On March 24, 2025, the U.S. Patent and Trademark Office (USPTO) issued a memorandum providing guidance on its recent decision to rescind the "Interim Procedure for Discretionary Denials in AIA Post-Grant Proceedings with Parallel District Court Litigation." This change reverts policy to pre-2022 guidance, specifically the precedential decisions in Apple Inc. v. Fintiv, Inc. and Sotera Wireless, Inc. v. Masimo Corp.
Perilla Knox & Hildebrandt LLP proudly congratulates Brad Groff on being named to Super Lawyers for the 19th consecutive year. This prestigious recognition is a testament to Brad’s deep expertise in intellectual property law and his dedication to delivering outstanding results for our clients. Brad is widely known in Atlanta and nationwide.
Perilla Knox & Hildebrandt LLP, a boutique intellectual property law firm, proudly marks its third anniversary, celebrating significant growth and the opening of a new satellite office in Boca Raton, Florida.
Perilla Knox & Hildebrandt LLP is excited to welcome Usha Parker to the firm. With nearly two decades of experience in intellectual property law and a strong technical background, Usha brings a wealth of knowledge and expertise that will be invaluable to our clients.
In US Synthetic Corp. v. ITC, the Federal Circuit issued a precedential decision providing useful guidance on the application of 35 U.S.C. § 101, which governs patent eligibility. Specifically, the court addressed whether the claims of U.S. Patent No. 10,508,502 (the ’502 patent) were directed to an abstract idea and thus ineligible for patent protection. The case offers valuable clarification on how to assess claims involving physical compositions of matter under the two-step framework established by the Supreme Court in Alice Corp. v. CLS Bank International.
In Kroy IP Holdings, LLC v. Groupon, Inc., the Federal Circuit reversed a district court’s dismissal of Kroy’s patent infringement claims on the grounds of collateral estoppel. The court clarified that inter partes review (IPR) decisions by the Patent Trial and Appeal Board (PTAB), which use a lower burden of proof, do not automatically preclude litigating related but unadjudicated patent claims in district court.