CNY 105M Battery Patent Invalidated | Zhuhai CosMX | ATL
- Total Infringement Claims: Over CNY 100M
- Patent Fully Invalidated
Innovate with Confidence, Expand Beyond Borders
Standout Data
IP Disputes
4000
Cases
Litigation Success Rate
80
Nat'l Leading Cases
30
Cases
IP Attorneys
40
Service
Since its establishment, Sunshine IP Law Firm has continuously expanded and deepened its legal service expertise, building a "comprehensive yet specialized" practice framework focused on corporate legal advisory, intellectual property, M&A, real estate and construction, finance, securities and capital markets, foreign investment, and international trade. We deliver integrated solutions to help clients manage legal risks and achieve business objectives.
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Advantages
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Chambers-ranked Attorneys with Industry-leading Expertise
Chambers-ranked Attorneys with Industry-leading Expertise
Sunshine IP Law Firm’s managing partner has been consistently recognized in Chambers and Partners for IP litigation. With over 40 dedicated attorneys, including multidisciplinary experts in patent, trademark, copyright, and antitrust law.
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4,000+ Cases | Benchmark Experience Across Industries
4,000+ Cases | Benchmark Experience Across Industries
With over 4,000 IP litigation cases spanning telecom, pharma, consumer electronics, semiconductors, and 20+ sectors, the firm’s cases have been selected as SPC model cases and CNIPA.
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Integrated Litigation & Advisory Services
Integrated Litigation & Advisory Services
Moving beyond standalone litigation, we offer end-to-end solutions from rights confirmation to enforcement and transactions. Our team handles patent invalidation, trademark opposition reviews, and IP management system development.
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Tailored Support Across the IP Lifecycle
Tailored Support Across the IP Lifecycle
Customized legal strategies cover the entire innovation journey—from IP creation to commercialization—ensuring proactive risk mitigation and market-ready protection.
Research
《Strategies for Patent Validity Defense & Challenge》
This work holds profound technical and strategic significance in the IP field. Tian Lipu, former Commissioner of the China National Intellectual Property Administration (CNIPA), authored the foreword, emphasizing:
"For every case, patent attorneys meticulously crafted and rigorously debated each patent authorization document, ensuring word-by-word refinement and strict adherence to legal standards."
"For every case, patent attorneys meticulously crafted and rigorously debated each patent authorization document, ensuring word-by-word refinement and strict adherence to legal standards."
70 real patent validity cases
Focused analysis of three core challenges in patent validity
News
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2026-04-02
Supreme People’s Court of China Issues Final Judgment Invalidating Medtronic’s Invention Patent for “Device for Endovascular Intervention”
Recently, the Supreme People’s Court of China rendered a final judgment in an administrative dispute concerning the invalidation of an invention...
2026-04-02
Two Cases Handled by Sunshine IP Cited in the “Annual Report of the Intellectual Property Court of the Supreme People's Court of China (2025)”
Recently, the Intellectual Property Court of the Supreme People's Court of China officially released its annual work report for 2025. As a summar...
Clients
