Chun Xu's practice includes patent litigation and trials before the Patent Trial and Appeal Board (PTAB), including inter partes reviews and post grant reviews. His practice also includes other matters in U.S. Patent and Trademark Office (USPTO), including ex parte reexaminations and patent prosecution. He is skilled in complex high-tech technologies in electrical engineering and computer science, with particular experience in wireless communication protocols, digital and analog signal processing, video/audio signal processing, and semiconductor manufacturing.

Chun's technical experience encompasses areas such as electromagnetism, wireless power transmission, antennas, integrated circuit design, computer software, communication systems, blockchain technologies, and artificial intelligence.