Tranfan Law Office provides you with legal solutions for
Your Business
from a
Full Service Law Firm
Based in Hangzhou, China
30+
Years of Experiences
About Us
Tranfan Law
Tranfan Law Office is a China-based full-service law firm dedicated to helping businesses protect their rights, manage legal exposure, and operate confidently in domestic and international markets.
With offices strategically located in Hangzhou, Ningbo, and Nanjing, we are positioned to support clients across some of China’s most active commercial and manufacturing regions.
Certification
China’s Top 100 5A Level Trademark Agency
China’s A Level Patent Agency
Why Choose Us?
Strategic Solutions, Trusted Results
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Our Services
What We Offer for You
Trademark Services
Patent Services
Commercial Legal & Corporate Legal
Litigation and Prosecution Service
Our Services
What We Offer for You
Prosecution Services
Litigation Services
Commercial Legal & Corporate Legal
Legal Consultation & Advice
Trademark Services
Patent Services
Copyright Services
Contract Drafting
Due Diligence
Legal Investigation
Sworn & General Translation (Mandarin – English)
Our Team
Meet Our Dedicated Consultants
Connect With Us
Let's Work Together
Have Any Question?
+86 131 6591 5823
Send Us Email
law@zjbls.com
Visit Us Anytime
Room 907, Building 1, Sky Wing Business Center, No. 133 Hongtai Road, Shangcheng District, Hangzhou, Zhejiang, China
Contact Us
News & Articles
The Latest News
China Is Finally Cracking Down on Trademark Squatters. Here’s What It Means for Your Brand.
For decades, the playbook was painfully familiar. A foreign brand would enter, or even just announce plans to enter, the Chinese market, only to discover that someone had already registered its name, logo, or Chinese…
Two Shenzhen Giants, One Patent War: Inside the DJI vs. Insta360 Fight
For years, DJI and Insta360 stayed in their own lanes. DJI owned drones. Insta360 owned 360-degree cameras and action cams. Everyone knew who did what. That changed in 2025 — and it’s now turned into…
Xiao-I vs. Apple: Why a Valid Patent Still Lost the Siri Lawsuit
Apple just won a 14-year legal fight in China. On June 10, 2026, the Shanghai High People’s Court threw out every claim in Xiao-I Corporation’s lawsuit against Apple. Xiao-I said Siri copied its 2004 chatbot…