IP Stars

Tsai Lee & Chen

Taiwan

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IP STARS Reviews

Overview

Tsai Lee & Chen is a leading IP law firm, and its IP services encompass prosecutions, portfolio management, litigation and licensing matters. The firm showcases strength in the semiconductor, biochemistry and pharmaceutical sectors. 

Notable patent practitioners: Candy KY Chen and Augustus CP Chin. 

Notable soft IP practitioner: Crystal J Chen. 

 
Testimonial

2026

"Very professional and responsive, keeping clients informed and explaining what is going on very well."

Crystal Chen

"Crystal plays a pivotal role in handling our patent and trademark matters, and we highly trust her legal professionalism and leadership."

 

2025

"Long-standing relationship; reliability; knowledge of the technical subject matter."

"Long-standing relationship. Very professional and reliable firm."

"Professional advice, prompt response, trustworthy services."

"Reliability and professionalism; great eye for detail."

"They are always responsive ... quick to send us feedback."

"They are very responsive and handled the work with utmost care."

"Very reliable and very qualified lawyers, very pro-active."

Patent

The firm is advising clients from various sectors on prosecution and litigation work.

Trade mark

Case studies show the firm successfully defended Gentle Monster's trademark registrations in Classes 18 and 25 against Monster Energy's opposition before the Taiwan Intellectual Property Office (TIPO), establishing that the marks are not similar and that Monster Energy failed to demonstrate sufficient fame or use in Taiwan, with the opposition now pending appeal at the IPC Court.