Insights

CHANG TSI
Insights

November12

2026

Understanding Utility Model Patents in China I: Cost-Effective Patent Protection for Business Innovation
CHANG TSI
Insights

November06

2026

Chang Tsi Insights丨Originality Statements and Revocation under China's Revised IC Layout-Design Regulation
CHANG TSI
Insights

November03

2026

Chang Tsi Helps Client Overcome Inventive Step Rejection and Restore Patent Examination Process
CHANG TSI
Insights

October30

2026

Chang Tsi Helps a Well-Known Fashion Brand Wins Anti-Counterfeiting Case in China
CHANG TSI
Insights

October26

2026

Can a Patent Filed by a Collaboration Partner Be Invalidated for "Violation of Good Faith"?
CHANG TSI
Insights

October23

2026

Why Prior Design Searches Matter: Value Before Filing and After Grant
CHANG TSI
Insights

October20

2026

Parent Patent Invalidated, Divisional's Two Office Actions Both Denied Inventiveness — So How Was It Still Granted?
CHANG TSI
Insights

October19

2026

Manufactured In-Term, Sold Post-Expiry: Still Commit Plant Variety Infringement
CHANG TSI
Insights

October13

2026

Generic Drug Patent Certifications Can Now Be Corrected, but Both Sides Hold the Key
CHANG TSI
Insights

October10

2026

Vietnam’s 2026 Trademark Reforms: Simplifying Procedures and Improving Examination Efficiency
CHANG TSI
Insights

September29

2026

China's Trademark Law Implementing Rules: Several Signals from two Drafts
CHANG TSI
Insights

September23

2026

China's First Judicial Rules on AI Disputes: Existing Law, Applied to New Facts