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Pursuing California Joseph Trojan
Joseph Trojan

Joseph Trojan

Providing quality intellectual property services since 1991

33 years of experience

Intellectual Property, Trademarks, Patents, Business Law



Joe Trojan is a registered patent attorney and trial lawyer in Los Angeles with more than 30 years’ experience obtaining and enforcing patents and trademarks throughout the world for his clients worldwide. Holding degrees in biological sciences as well as in law, Mr. Trojan’s practice has a particular focus in the life science technologies including biotechnology, medical devices, organic chemistry, pharmaceuticals and more. He also has represented clients in various industries: mechanical, chemical, manufacturing, retail, apparel, retail, commerce, and software. He drafts and negotiates licensing agreement. As an accomplished trial lawyer, he has extensive experience litigating patents, trademarks, and trade dress cases throughout the United States. Litigation can be a costly endeavor; therefore, Mr. Trojan works to resolve disputes, when possible. However, should a case proceed to trial, he is skilled at presenting complicated legal and scientific issues to judges and juries in a clear manner using innovative techniques to obtain successful outcomes. He also has served as a local counsel for litigations in all California district courts assisting out of state attorneys and as a patent law expert in patent litigation cases. Trojan Law Offices has four other licensed patent and trademark attorneys who are specialized in intellectual property. Mr. Trojan has effectively argued appeals before the Ninth Circuit Court of Appeals and the Federal Circuit Court of Appeals in Washington, D.C. With respect to licensing, he has negotiated complex multinational patent licenses for his clients and has developed effective licensing strategies for monetizing entire patent portfolios. View More ›


Free Consultation We offer a free initial 20 minute consultation over the phone. As we are a boutique IP law firm without a large overhead, we can provide you quality of service with a reasonable fee. Please contact us for an estimate. Please see testimonial from our clients for our work on our website. We look forward to assisting you with obtaining your intellectual property protection.

Practice Area

Intellectual Property
Trademark Litigation, Trademark Registration,
Patent Appeals, Patent Litigation, Patent Prosecution,
Business Law
Business Contracts, Business Dissolution, Business Finance, Business Formation, Business Litigation, Franchising, Mergers & Acquisitions, Partnership & Shareholder Disputes,


Chinese: Spoken, Written

English: Spoken, Written

Japanese: Spoken, Written

Vietnamese: Spoken, Written

Professional Experience

Trojan Law Offices


Loyola Law School, Los Angeles

J.D. (1988) | Law: Intellectual Property

Loyola Law School, Los Angeles
University of Southern California

B.S. (1985) | Biological Sciences/Molecular Biology Program

University of Southern California


Professional Associations

American Bar Association


American Bar Association
California State Bar # 137067


1988 - Current

California State Bar  # 137067

Websites & Blogs

Los Angeles Intellectual Property Lawyer


Social Media


Los Angeles Office
9250 Wilshire Blvd Beverly Hills, CA 90212
Telephone: (310) 777-8399
Fax: (310) 777-8348

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Offers Video Conferencing
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