Linjun Xu

Linjun Xu is a patent litigation attorney at Russ August & Kabat, focusing her practice on complex intellectual property disputes. Her experience spans both district court litigation and Patent Trial and Appeal Board (PTAB) proceedings, where she represents clients in a range of technology sectors.

Ms. Xu has handled cases involving software and cloud infrastructure, particularly related to containerization and workload portability technologies, as seen in her representation of VirtaMove Corp. in infringement actions against major technology companies like Oracle Corporation and International Business Machines Corp. She also possesses significant experience in wireless communication standards, specifically Wi-Fi technology, where she has defended Wilus Institute of Standards and Technology Inc. against challenges from Unified Patents and Samsung Electronics Co., Ltd.

Xu's practice demonstrates a balanced approach, with appearances representing plaintiffs in patent enforcement and defendants in infringement suits and validity challenges. While she has taken on the plaintiff side for patent assertion entities like VirtaMove, the majority of her tracked appearances involve defending companies against infringement claims or challenging patent validity, including in inter partes review (IPR) proceedings.

In terms of notable cases and outcomes, Ms. Xu was counsel in VirtaMove Corp. v. Oracle Corporation, a cloud container patent dispute that settled confidentially and was dismissed with prejudice after 128 days. She also represented VirtaMove in a container technology patent suit against IBM that concluded with a dismissal with prejudice. Furthermore, Ms. Xu has been involved in several IPR proceedings, defending Wilus Institute of Standards and Technology Inc.'s Wi-Fi 6 patents against challenges from Unified Patents and Samsung Electronics Co., Ltd. The firm's intellectual property team, which includes Ms. Xu, has experience in various PTAB matters.

Ms. Xu was admitted to the State Bar of California on December 9, 2015.