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

Cases

CNY 105M Battery Patent Invalidated | Zhuhai CosMX | ATL
  • Total Infringement Claims: Over CNY 100M
  • Patent Fully Invalidated
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"Rivaroxaban" Patent Infringement Administrative Ruling
  • 2022 China’s Top 50 IP Cases
  • 2022 SPC IP Tribunal Typical Cases
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Gree vs. Aux Series Patent Invalidations & Litigations
  • Total Infringement Claims: Over CNY 100M
  • Utility Model Patent Fully Invalidated
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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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Intellectual Property

Patent
Trademark
Copyright
01

Competition & Antitrust

Unfair Competition Advisory
02

Dispute Resolution & Litigation

Commercial Dispute Mediation
03

Corporate Legal Services

Corporate Governance Services
04

Advantages

  • 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.

  • 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.

  • 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.

  • 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

《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."
70 real patent validity cases
Focused analysis of three core challenges in patent validity

News

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2025-03-07

Sunshine IP’s Luo Xiao Analyzes Patent Layout and Infrontier Risk Strategies for Reagent Companies Expanding Overseas

Recently, the "Forum on Reagent Development and Overseas Market Frontiers," jointly organized by Sinopharm Reed Exhibition Co., Ltd. and the National...

2025-11-19

Since October 1st, 2025 the EPO accepts coloured drawings

As it may be already known, the European Patent Office (EPO) has changed the formal rules in order to accept coloured or greyscale drawings. Situ...

2025-11-18

2026 Revision to the China Patent Examination Guidelines

The 2026 revisions update the China Patent Examination Guidelines to keep pace with technological progress and to solve practical problems encountered...

2025-02-16

The European Patent Office has adopted amendments to the Implementing Regulations to the European Patent Convention

@China IP News NetworkRecently, the Administrative Council of the European Patent Office (EPO) adopted a series of amendments to the Implementing Regu...

2025-01-31

The National Intellectual Property Administration has issued an administrative response regarding the use of registered trademarks before they are declared invalid.

In the practical work of trademark law, when encountering issues such as whether the use or sale of a registered trademark before it is declared inval...

Sunshine IP’s Luo Xiao Analyzes Patent Layout and Infrontier Risk Strategies for Reagent Companies Expanding Overseas
Since October 1st, 2025 the EPO accepts coloured drawings
2026 Revision to the China Patent Examination Guidelines
The European Patent Office has adopted amendments to the Implementing Regulations to the European Patent Convention
The National Intellectual Property Administration has issued an administrative response regarding the use of registered trademarks before they are declared invalid.
2025-11-19

Since October 1st, 2025 the EPO accepts coloured drawings

As it may be already known, the European Patent Office (EPO) has changed the formal rules in order to accept coloured or greyscale drawings. Situ...

2025-11-18

2026 Revision to the China Patent Examination Guidelines

The 2026 revisions update the China Patent Examination Guidelines to keep pace with technological progress and to solve practical problems encountered...

2025-03-07

Sunshine IP’s Luo Xiao Analyzes Patent Layout and Infrontier Risk Strategies for Reagent Companies Expanding Overseas

Recently, the "Forum on Reagent Development and Overseas Market Frontiers," jointly organized by Sinopharm Reed Exhibition Co., Ltd. and the National...

Clients