Jinggao Li, Ph.D.


Office: (212) 363-8008; (718)445-8008


Dr. Li began his intellectual property services in 2009, and is mainly engaged in patent applications for mechanical, electrical and software art, patent  litigation and other intellectual property matters. He founded Dragonsun Corporation back in 2011 and has been engaged in intellectual property services consistently since then.

Dr. Li has successfully completed patent applications in various fields, including mechanical and electronic devices, optics, semiconductors, medical  devices, e-commerce, software, heavy machinery, compounds and biological drugs.

Dr. Li provides clients with comprehensive services in all phases of intellectual property law, including US and foreign patent, trademark and copyright  applications, patentability assessment, legality assessment, licensing, patent invalidity and infringement, product design solutions, patent portfolio  development and management, and patent litigation support.

Before starting his career as a lawyer, Dr. Li worked as a senior engineer, project manager, and technical leader at various semiconductor companies. Dr. Li  was a senior engineer, senior analyst and technology leader at ASML, the world's top semiconductor manufacturer.

Diligent and sincere work attitude, fluent Chinese and English, and superb business skills make Dr. Li be an  experienced and outstanding patent attorney in the United States.

Fast, efficient, sincere, enthusiasm and patience, and providing customers with excellent professional services have always been the criteria that Dr. Li has  adhered to for many years.

Dr. Li is also the inventor of two US patents and one of the authors/co-authors of more than twenty scientific papers.

Practice Focus

Intellectual property services,patent applications for mechanical, electrical and software art, patent litigation and other intellectual property matters.

Bar Admissions



National association of patent practitioners (NAPP)

Fairfield County Bar Association


J.D., University of Connecticut School of Law Ph.D. in Mechanical Engineering, State University of New York at Stony Brook

MBA (21 credits), State University of New York at Stony Brook BS and MS, Department of Mechanical Engineering, Xi'an Jiaotong University

Altman & An LLP

  • Phone: 1-718-445-8008
  • Fax: 718-445-8018
  • Email:
  • Web:
  • Flushing Office: 41-25 Kissena Blvd , Flushing NY 11355
  • Manhattan Office: 11 Broadway suite 568, New York, NY 10004

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