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Our Legal Team     

Karen Chen

       Vicky (Wei-Chi) Lee provides legal services to growing technology companies, angel and venture investors. Ms. Lee’s expertise spans both patent and trademark matters, including drafting and reviewing Intellectual Property related agreements, conducting Patent and Trademark prosecution and foreign counterparts, evaluating inventions to determine patentability, building valuable patent portfolios for companies in the high-tech industry, and assists clients in defending patent/trademark/copyright infringement claims, etc.

        Ms. Lee received her LL.M. from the University of California, Berkeley, School of Law, with a focus on technology and business law, and obtained her Bachelor’s Degree in Management Science, and her first law degree from National Chiao Tung University of Taiwan.

​         Ms. Lee provides solution-focused, cost-effective, and high-quality legal services to clients. She represents established and emerging companies in the procurement, transaction and enforcement of intellectual property (IP) rights. Her practice spans a wide technology range including chemical engineering, mechanical device, medical device, computer hardware and software, as well as the biomedical and pharmaceutical fields.

        Ms. Lee is licensed to practice law in California and New York. Ms. Lee has passed the Patent Bar Examination, and has obtained Information Privacy Professional/ United States (CIPP/US) certification.

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.

Vicky Lee.Esq  

        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.

Contact us today for a confidential initial consultation!

Attorneys at Law

​Jasmine Ya-Fen Chen, JD, PhD

Copyright of JAS Law LLP

Please email us at

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