In recent years, Ms. Sun has been deeply involved in a number of highly influential series of cases within the industry and achieved favorable outcomes. These matters involved extremely large sums in dispute, cutting-edge technologies, or key market dynamics. The technical areas covered include, but are not limited to, RF devices, optoelectronic semiconductors, photovoltaic technologies, lithium batteries, autonomous driving, advanced semiconductor manufacturing equipment, various sensors, electronic circuits, and communication technologies.

Ms. Sun is particularly adept at handling complex and high-difficulty IP disputes and risk prevention matters. Her practice includes patent infringement litigation, patent invalidation proceedings and related administrative litigation, freedom-to-operate (FTO) analyses, trade secret infringement litigation and the development of trade secret protection systems, software copyright infringement litigation, integrated circuit topography right infringement litigation, and open-source software compliance analysis and advisory services. She has also provided domestic-side support for overseas patent prosecution and patent litigation for multiple Chinese enterprises, and is familiar with patent practices in major countries and regions worldwide.

(I) Patents

· Represented a leading domestic RF chip manufacturer in a series of patent infringement disputes against a Japanese competitor, including patent infringement litigation and patent invalidation proceedings, involving RF devices.

· Represented a world-leading sensor manufacturer in patent infringement disputes against a competitor, including patent infringement litigation and patent invalidation proceedings, involving pressure sensors.

·  Represented a world-leading power module provider in patent infringement disputes against a competitor, including patent administrative complaints and patent invalidation proceedings, involving electronic circuits.

·  Represented a leading domestic photovoltaic (PV) company in a series of patent infringement disputes against competitors including patent infringement litigation and patent invalidation proceedings, involving PV technologies.

·  Represented a leading domestic LED manufacturer in a series of patent infringement disputes against competitors, including patent infringement litigation and patent invalidation proceedings, involving semiconductor light-emitting devices.

·   Represented a leading domestic supplier of loudspeaker diaphragms in a series of patent infringement disputes against competitors, including patent infringement litigation and patent invalidation proceedings, involving MEMS devices.

·  Represented a well-known domestic smart home company in a series of patent infringement litigations against competitors, involving lighting control technologies.

·  Represented a globally renowned technology company in a series of patent infringement litigations against another company, involving interface technologies.

·  Represented a domestic originator agrochemical company in launching a series of patent enforcement actions against competitors, involving agrochemicals.

·  Provided legal services to a globally renowned wireless communications patent pool in a dispute over standard-essential patent (SEP) royalty rates with a globally renowned mobile phone manufacturer, involving 3G and 4G communication technologies.

·  In a patent infringement dispute between a domestic research institute and a globally renowned chip manufacturer, provided legal services to the former relating to patent invalidation and infringement litigation, involving integrated circuits.

·  Provided freedom-to-operate (FTO) analyses and due diligence services to multiple domestic companies, involving RF chips, optical chips, smart logistics, medical devices, and other fields.

(II) Trade Secrets

·  Represented a domestic autonomous driving company in trade secret misappropriation litigation against a competitor, involving autonomous driving technologies.

·   Represented a leading domestic shared mobile data provider in trade secret misappropriation litigation against a competitor, involving mobile Wi-Fi technologies.

·   Represented a domestic testing equipment manufacturer in trade secret misappropriation litigation against a competitor, involving machine-vision inspection equipment.

·   Provided trade secret regime/system development and compliance analysis services to multiple domestic companies.

(III) Other IP Litigation

·   Represented a domestic chip design company in an integrated circuit layout-design infringement dispute against a competitor, including IC layout-design (topography) right infringement litigation and invalidation/cancellation proceedings before the CNIPA, involving RF chips.

·   Represented a domestic software provider in software copyright infringement litigation against a competitor, involving OA (office automation) system software.

(IV) Overseas IP Disputes

·   In a series of patent infringement disputes in South Korea and Germany between a domestic RF device manufacturer and its competitor, provided the former with litigation support and strategic oversight for patent litigation and patent invalidation proceedings, involving RF devices.

·   In a U.S. patent infringement lawsuit between a U.S. fitness equipment company and a domestic fitness equipment company, served as domestic counsel supporting the latter, involving automatic control and mechanical technologies.

·   In a series of U.S. patent infringement lawsuits between a leading domestic optoelectronic lighting company and its competitor, served as domestic counsel supporting the latter, involving optoelectronic control technologies.

·   Represented a domestic semiconductor manufacturing equipment manufacturer in an IP infringement dispute in Germany against a European competitor.