In addition to federal court litigation, Arch & Lake LLP represents clients in post-grant proceedings before the Patent Trial and Appeal Board (PTAB), including inter partes review (IPR), post-grant review (PGR), and ex parte reexamination (EPR). Our team has handled more than twenty PTAB proceedings, often in parallel with district court litigation as part of a coordinated patent dispute strategy.
PTAB proceedings require a unique blend of litigation strategy, technical expertise, and patent prosecution experience. Our attorneys combine these skills to develop effective challenges and defenses of patent validity. By integrating PTAB proceedings into broader litigation strategies, we help clients strengthen their positions in ongoing disputes and achieve favorable outcomes in complex patent matters.
Selected Representative PTAB Matters
Arch & Lake LLP represents both petitioners and patent owners in inter partes review, post-grant review, and related appeals, frequently as part of a coordinated strategy involving parallel district-court or ITC litigation. Representative matters include:
Electronic Shelf-Label Technology
Represented a leading electronic shelf-label manufacturer in seven IPR proceedings arising from a multinational patent dispute. We filed four petitions challenging a competitor’s patents—IPR2024-00188, IPR2024-00189, IPR2024-00190, and IPR2024-00208—and defended three of the client’s patents in IPR2024-00857, IPR2024-00963, and IPR2024-01045. We coordinated the PTAB proceedings with related district-court actions and Federal Circuit appeals. The U.S. and related proceedings were resolved through a global settlement in 2025.
Motorized Furniture and Control Systems
Represented a major furniture manufacturer in PGR2019-00029, resulting in the invalidation of an asserted design patent under the on-sale bar. The Federal Circuit affirmed the decision. We also represented the client in IPR2019-00616 and IPR2019-00530 as part of a coordinated defense that materially narrowed the patent issues before trial.
Robotic Vacuum Technology
Represented a Chinese robotic-vacuum manufacturer in five IPR proceedings challenging patents asserted in a related ITC investigation: IPR2018-00761, IPR2018-00880, IPR2018-00882, IPR2018-00897, and IPR2018-00898. We also represented the client in five related Federal Circuit appeals from the PTAB decisions.
Motorized Furniture Components
Represented the patent owner in L&P Property Management Co. v. Remacro Machinery & Technology (Wujiang) Co., IPR2019-00255, defending the validity of a patent involving motorized furniture technology.
Consumer and Industrial Products
Additional PTAB matters include Dong Guan Leafy Windoware Co. v. Anli Spring Co., PGR2020-00001; Wisely Products LLC v. Telebrands Corporation, PGR2018-00003; Shenzhen Carku Technology Co. v. The NOCO Company, IPR2020-00944; Danxiao Information Technology Ltd. v. Shenzhen Svakom Technology Co., PGR2022-00050; and America Ugreen Limited v. Sariana LLC, PGR2026-00062.
View More Representative Matters
Discuss a PTAB Matter
Whether you are considering an IPR or PGR petition, defending a challenged patent, or coordinating a PTAB proceeding with parallel district-court or ITC litigation, contact our team to discuss your strategy.
Email: info@archlakelaw.com
Results depend on the facts and circumstances of each matter and do not guarantee a similar outcome.