Client Testimonials

” I first spoke with R. Joseph Trojan a while back. He was the only attorney who seemed wise enough to help us figure out what to do next regarding a patent we had received. He wrote out a Continuation-In-Part to our existing patent. His team was very professional, submitted in a timely manor, and very engaging and respectful. He gave the time and attention to detail that was needed. He made our invention seem very important and valued. I would recommend Trojan Law Offices to all those needing guidance regarding their intellectual property and, by the way, we have already received our Notice Of Allowance on the second patent thanks to R. Joseph Trojan.
Many Thanks!”

Marlene T., Los Angeles

“We have worked with Trojan Law to assist with trademark applications and renewals for many years. We have always found them to be knowledgeable, quick to respond and easy to work with. We highly recommend Trojan Law!”

Bevin G., Los Angeles

“Joe Trojan and his team went way beyond the call of duty on my Trademark issue. They have a wealth of knowledge and the know how to use it; which was most impressive. They are tenacious and thorough. Trojan Law Offices gets an A + in my opinion.”

Nina P., Los Angeles

“I would like to post my recommendation of Trojan Law Offices and especially Mr. R. Joseph Trojan himself and the members of his team, specifically Adam Diament and Michiko Speier, for their excellent, highly professional, fair and honest services.


Our case concerned filing of a pharmaceutical patent application with the USPTO. We have approached Mr. R. Joseph Trojan because our company was unsatisfied with the services of the law office which initially handled our patent application. Mr. Trojan offered an initial free appointment and consultation. He had demonstrated deep knowledge and friendly attitude that convinced us to hire his services, and we were since not disappointed in our choice. He and his team have handled and navigated the patent application against rough objections from the patent examiner all the way through to the successful allowance not only of the original patent application, but also eventually, to an allowance of an additional patent based on a continuation application of the original patent.


Our company continues, of course, to work with Mr. Trojan in all matters concerning intellectual properties. And we recommend him and his firm highly!”

Gad G., Henderson, NV

“Trojan Law Offices has been managing all of the legalities pertaining to my business for almost 2 years, and has been integral and necessary to the growth of my business. I first met with Joseph Trojan in April 2015, after thinking of a brand new product idea that felt was necessary to protect. Joseph Trojan listened to my thoughts, provided discussion and education on the process of obtaining a utility patent, and has made himself as well as his team easily accessible ever since. Since the inception of my invention, I have been working directly with Adam Diament, and feel strongly that his exceptional knowledge of patent law is the reason why my product idea for a portable washing and drying apparatus has become a business that is ready to launch in the upcoming months. With the help of Adam Diament, I was able to secure a utility patent in record time. Adam Diament is extremely responsive to the multiplicity of questions that I ask on a regular basis, and always provides an in-depth explanation so I can understand the legal issues necessary for the growth of my business. I have thus far used the services of Trojan Law Offices to receive my initial utility patent, expand the claims of my utility patent, secure the perfect trademark for my company, and form an LLC. I plan on using the services offered by this firm on an ongoing basis.”

Niloufar G., Bel Air

“The Trojan Law Office has effectively helped guide our company through a complicated, multi-party litigation/settlement with a steady hand throughout the process. The entire legal team has been readily available as required for updates and legal advice on issues spanning the legal gambit from intellectual property to contract, insurance, and tort.

We hired Joe and his team because they had been an adversary previously, and we found him to be a strong advocate for his client. Our own experience proved to be nothing short. Joe has fought for us at every turn and we always felt we had the best lawyer in the room!”

Eric L.

I used Trojan Law offices for several patent searches recently and could not be happier.. Joe has been so professional, knowledgeable and made the process a breeze all while providing the best legal advice and helping me make the right decisions for my business.. I will  definitely use this law firm if I ever need additional legal work and will recommend them to anyone. I consistently was informed of where things were at in my case and Joe explained everything very patiently, even if I called and asked the same questions 🙂  Its hard to find honest hard working attorneys in my experience, but these guys are the real deal! Thank you for everything.

Ash J.

I had the pleasure of using Trojan Law Offices service to get my Medical Device Patent and two of my Trademarks approved. These are top-notch, knowledgeable lawyers who are very respected. As customer, I cannot be more satisfied! I highly recommend Trojan Law Offices!

Moustafa M.

Trojan law has been providing Trade Mark and Patent service for us for almost 8 years now. We have used them many times on lots of projects. Always professional, responsive and fair. Wouldn’t go anywhere else.

Smoke Buddy

Trojan Law has always offered great service. Michiko is always on top of things. It’s easy to communicate and get answers in a timely manner. Joe Trojan is very knowledgeable and gets us answers to all our questions. I recommend Trojan Law highly.

Sergio M.

“Trojan Law Offices has been our go to trademark and copyright law office and Mr. Joseph Trojan has helped us and represented us successfully over the last 5 years! very responsive and pleasant to work with!”

Arvin P.

Fight On! I got my patent! From day one Joe explained how the process works. At the end Joe had to appear in person before a Patent Trial and Appeal Board to argue and get my patent.

Oswaldo A., Westchester, CA