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Yeang Jen & Associates

Yeang Jen & Associates, International Law, Patent, and trademark firm was founded in 1989. Our principle is combined with Professionalism, Integrity, and Efficiency. More than 20 experienced staffs and patent engineers concentrated their practice on domestic and foreign intellectual property rights and providing services in efficacy of all fields of intellectual properties to our clients internationally.


Chairman / Marcus Lin
At Yeang Jen & Associates, we uphold Professionalism, Integrity, and Efficiency to assist you and let your inspiration and invention come true in the Intellectual Property world. We approach all aspects of patent, trademark, copyright, and related legal matters with in-depth knowledge of intellectual property system in Taiwan and around the world.


Attorney-at-Law /
Lin, Chao-Chun
Yeang Jen & Associates is continuously devoted to provide our domestic and international clients high quality service with cautious working attitude and efficient cases processing. Our team is including many professionals in chemistry, mechanical engineering, electronics engineering and optoelectronics. Also, our attorney-at-law Mr. Lin, Chao-Chun, graduated from Law School of National Taiwan Chengchi University, has more than 20 years of practice and experience on Intellectual Property infringement processing and also provides various civil and crime law for counsel services.

All our staffs and agents are continuously devote to provide our clients with integrity and efficiency in-depth professional work. And we do pledge to provide our every client an uncompromising commitment to quality work while providing cost-effective solutions.

Fields of Practices

Legal Consultant Service by contract


Legal Affairs

  • 1.Representing civil and criminal actions, administrative suits and litigation relating to intellectual property rights.
  • 2.Consultation and advice regarding laws and intellectual property matters.
  • 3.Drafting commercial contracts and providing legal writing advice and other contracts.

IP Protection

  • 1.Home and foreign patent / trademark/ copyright registration
  • 2.Search and analysis for patent / trademark application
  • 3.Assignment and licensing of patent / trademark application
  • 4.Infringement and evaluation of patent / trademark application