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or call us at +1 (408) 900-8900

Attorneys at Law

Keren Hu, Esq.  


       Ms. Hu is an intellectual property attorney with deep IP litigation and prosecution experience. She also advises clients on transactional matters such as financing and M&A, leveraging her experience in complex patent litigation. Her practice spans a wide technology range including computer electronics, network communications, multimedia streaming, gaming, cloud computing and machine learning.

       For nearly 10 years, Ms. Hu has represented established and emerging companies in the procurement, transaction and enforcement of IP rights.  She was previously with several large global law firms, including Pillsbury Winthrop Shaw Pittman LLP, Morgan Lewis & Bockius LLP and Paul Hastings. Before her legal career Ms. Hu has had significant industry experience in research, technology management and product development in consumer electronics and broadband communication ASIC design.  She was one of the pioneering HDTV set box design team before 2000 and has stayed up to date on the new fronts of technology such as blockchain and machine learning among other fields.  Ms Hu holds a J.D. from University of Washington School of Law, a Master degree in Electrical Engineering from Lehigh University, and a B.S. in Electrical Engineering from University of Science and Technology of China. 

       Ms. Hu is licensed to practice law in California and is a member of the U.S. Patent Bar.                                          (O) (408) 900-8900          (F) (415) 873-3288

The law firm of JAS Law, LLP offers the best lawyers in Corporate Transaction and Intellectual Property. We pride ourselves in maintaining a small-firm feel by treating each case with care and consideration. We’ve hand-picked a high-quality team of law professionals qualified to successfully resolve Clients' various legal matters.  No issue is too big or too small. If your company have a legal problem, our experts can help you find a solution.

Our Legal Team     

​Jasmine Ya-Fen Chen, JD, PhD

Ya-Fen (Jasmine) Chen provides high quality professional legalservices to companies, academic institutions and investment groups.  Jasmine's legal practice focuses on all areas of corporate transaction, business immigration, and intellectual property (IP) counseling, Her legal practice also provides part-time or virtual in-house counsel services. Jasmine applies business sense and cost-effectiveness in counseling her clients on IP legal matters.  The quality of her work product fits those clients looking for a close, efficient working relationship.

A PhD scientist by training, Jasmine has more than 18 years of patent law practice experience covering a wide range of technologies. She is engaging, organized, and motivated, and she thrives on handling disruptive advanced technologies.  Her legal experience includes working in client counseling for business start-ups, complex patent portfolio management for large companies, patent strategy for new drug leads and development pipelines, budgeting and prioritizing technology innovations, IP due diligence support, non-infringement and invalidity opinion practice, M&A, pre-litigation investigation, and related patent issues in NDA, ANDA, and IND for new drug applications submitted to the U.S. Food and Drug Administration (FDA).

  Jasmine is fluent in Mandarin Chinese. Jasmine is a member of the American Intellectual Property Law Association (AIPLA). Dr. Jasmine Yafen Chen is registered to practice before the United States Patent and Trademark Office (USPTO) and admitted to practice law in California.