Larry

Counsel Attorney at Law Patent Attorney

Larry has more than 15 years of experience in patent matters, including drafting, prosecution, reexamination, invalidation, FTO opinion and litigation, particularly in technical areas of computer software and hardware, internet, e-commerce, electronic circuit, telecommunication, semiconductor, display and lighting, etc. Larry has been entrusted by many famous companies to handle their patent application, patent invalidation and patent litigation cases, including Samsung, Hitachi, IBM, O-film, Tencent, Xiaomi, ZTE, Hongfa and Grundfos.

larry@changtsi.com

+86 10 88369999

Patent & Technology / Litigation & Disputes Resolution

Beijing

Technical Fields

Semiconductor Technology
Consumer Electronics
Artificial intelligence
Software engineering
Network security

Years with IP Matters

1996 until now

Professional Experience

Chang Tsi & Partners, Consultant
Beijing Chengyue Law Firm, Founding Patent Partner (2024 – 2026)
Beijing Lawsing IP Firm, Partner (2019 - 2024)
Lung Tin IP Attorneys, Senior Patent Attorney and Domestic Electrical Patent Dept. Manager (2013 – 2018)
Liu, Shen and Associates, Senior Patent Attorney (2004 – 2013)

Representative Cases

ZTE v. Vringo (Series of Patent Invalidation Proceedings)
Represented ZTE in a series of patent invalidation proceedings against Vringo before the China National Intellectual Property Administration (CNIPA) and obtained favorable decisions for the client.
Tencent v. A Shanghai-Based Entity (Patent Invalidation and Administrative Litigation)
Represented Tencent in patent invalidation proceedings before CNIPA challenging a patent owned by a Shanghai-based entity and in the subsequent administrative litigation; the patent was invalidated, and the invalidation decision was upheld by the court.
Grundfos v. A Chinese Pump Manufacturer (Patent Infringement Action)
Represented Grundfos in a patent infringement action against a Chinese pump manufacturer, obtained a finding of infringement, and secured substantial damages for the client.
A Chinese Company v. A Building Materials Entity (Second-Instance Patent Infringement Litigation before the Intellectual Property Court of the Supreme People’s Court)
Represented a Chinese company in second-instance patent infringement litigation before the Intellectual Property Court of the Supreme People’s Court against a building materials entity, and secured a reversal of the first-instance judgment in favor of the client by persuading the Court to correct the first-instance court’s erroneous application of the doctrine of prosecution history estoppel.

Education

Master of Engineering in Electronic Science and Technology (1991 – 1994),
University of Electronic Science and Technology of China (UESTC), Chengdu, China
Bachelor of Engineering in Electronic Science and Technology (1987 – 1991),
University of Electronic Science and Technology of China (UESTC), Chengdu, China

Bar Admission

China Bar
China Patent Bar

Languages

Chinese
English

back