Miffy Yen

Counsel Trademark Agent

With over 19 years of experience in the field of intellectual property, Miffy Yen has handled a wide range of cases involving trademark applications, oppositions, invalidations, and trademark infringement. Additionally, she provides both Chinese and international clients with trademark design consultation and global trademark strategy planning.

Ms. Yen earned her Master's degree in IP Law from Seattle University, after which she worked for several years at U.S. law firms, focusing on trademark-related cases and copyright litigation. These experiences have given her a comprehensive understanding of U.S. trademark practices and U.S. clients. Due to her familiarity with trademark policies in major global markets, Ms. Yen is well-equipped to assist clients in negotiating global trademark portfolios. She provides insightful, strategic advice that helps clients secure market share in international negotiations.

Throughout her career, Ms. Yen has not only represented clients in Taiwan but has also developed a broader perspective, offering clients comprehensive trademark strategy and protection across Asia. With her extensive and unique experience in trademark services, she is adept at providing IP protection for trademark and packaging design consultation, trademark portfolio management, and trademark infringement matters for multinational corporations worldwide.

As a senior trademark legal specialist and attorney, Ms. Yen serves clients across a variety of industries, including pharmaceuticals, hospitality, technology, apparel, food and beverages, semiconductors, cosmetics, education, sports, and entertainment. She has provided legal services to prominent international enterprises such as Sanofi, Pfizer, Marriott, Visa, UnionPay, Gucci, Uni-President, Unilever, ASML, Liverpool FC, and several NAPA wineries.
During her more than 15 years of practices, Ms. Yen not only represents cases in Taiwan but also, with a broader vision, provides clients with comprehensive planning and protection in respect of the overall trademark strategies in Asia. Using her rich and unique experiences in trademark services, she can offer the IP protection services for trademark and packaging design consultation, trademark application portfolio, and trademark infringement, for worldwide transnational corporations.

taiwanteam@changtsi.com

+86 10 8836 9999

Trademark Prosecution / Copyright & Domain Name

Taiwan

Practice Focus

Years with IP Matters

2006 until now

Main Services

Taiwan trademark application
Taiwan trademark opposition, invalidation and other cases of dispute
Taiwan trademark infringement
Trademark protection in Asian countries/regions outside Taiwan

Professional Experiences

Eiger (2014-2017)
Lee and Li (2012– 2014)
Law Office of ME Cavanaugh (2010-2012)
Seed IP (2009-2010)
Yu-Teng Technology Co., Ltd. (2005-2008)

Representative Cases

Ms. Yen represented Sanofi, a French corporation, to successfully determinate these trademarks “赛诺菲” (SANOFI in Chinese), “赛诺菲及图” (SANOFI and Device in Chinese), and “SANOFI”, as famous trademarks, and to obtain the cross-class protection in the case of opposition. Ms. Yen also helped Sanofi to cancel a great number of the opposed trademarks that were in no connection with medicine and nutritional supplement.
Engaged as the attorney of several US innovative manufacturers in mobile phone shell, Ms. Yen submitted abundant evidence for use against individuals squatting the clients` US registered trademarks in Taiwan, and helped to withdraw nearly 400 squatted trademarks, although such trademarks had not been officially applied for registrations in Taiwan.
In a case of dispute settlement over ETS company`s domain name, Ms. Yen succeeded in the withdrawal of the domain name of “toeic” that had been squatted by a squatter and helped the client to obtain the domain name involved.
In a case of trademark infringement, by means of plagiarism, on such famous trademarks as “GG logo”,” Gucci” and “BOTTEGA VENETA”, Ms. Yen, on behalf of clients including Gucci, BOTTEGA VENETA and Celine, adopted negotiation and legal procedures simultaneously, and solved the disputes over trademark infringement in a timely manner.
In an administrative appeal, Ms. Yen, as the attorney of Pfizer, succeeded in rebutting the evidence submitted for the highly similar trademarks registered by one of the client’s previous distributors and then helped to withdraw several trademarks squatted by this previous distributor in medicine.

Education

LLB, Soochow University
LLM, Seattle University

Bar Admission

Trademark agent registered at Taiwan Intellectual Property Office

Languages

Mandarin Chinese
English

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