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QUINTERO LAW OFFICE, OC focuses on intellectual property, principally patent and trademark prosecution before the United States Patent & Trademark Office. The firm also provides intellectual property services in connection with portfolio management, due diligence, legal opinions, licensing, strategic counseling, and litigation support.


Our client-focused practice emphasizes providing quality and personalized service in an efficient and cost-effective manner. We are committed to helping our clients intelligently navigate the patent and trademark systems to maximize the value of their intellectual property.

Schedule your initial consultation with QUINTERO LAW OFFICE, PC today — 310-909-8535. We look forward to learning how we can help.

Nelson A. Quintero
Founder and Principal

Mr. Quintero has nearly twenty years of experience in the field of intellectual property. He  focuses his practice on patent and trademark prosecution for both U.S. and foreign clients.  This work includes the preparation and prosecution of patent and trademark applications, patent reissue and reexamination proceedings, patent and trademark related opinions counsel, and due diligence reviews.  His clients include prominent universities, research institutes, and corporations, as well as small businesses and individuals located throughout California.   

Mr. Quintero holds a Bachelor of Science degree from Rensselaer Polytechnic Institute (1989) and a law degree from the Pepperdine University School of Law (1992).  He is admitted to the State Bar of California, a member of the American Intellectual Property Association, and registered to practice before the United States Patent and Trademark Office.

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