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We work with experienced inventors, first-time inventors, and in-house counsels to pursue and protect the strongest utility patents and design patents in the United States and abroad. Our full menu of patent-law services consists of:

Our clients are large and small, with varying budgets, and are at various stages of the patent process. Typically we suggest consulting with a patent attorney after you have developed a prototype of your invention, but before you have invested any more money into R&D, marketing, or legal counsel.

We work with inventors throughout Orange County, Los Angeles County, elsewhere in Southern California, and even beyond. All of our work can be done remotely, though most clients enjoy meeting in-person at various stages (and so do we). Many of our clients come from right here in OC, including Irvine, Anaheim, Santa Ana, Costa Mesa, Huntington Beach, Orange, Fullerton, and Garden Grove. Many more come from Los Angeles, Long Beach, Santa Monica, Glendale, Pasadena, Torrance, Lake Elsinore, Murrieta, Temecula, and other nearby communities.

The industries we work in reflect the employers and economy of SoCal. We’ve helped our clients secure patents in industries that include software & apps, electronics, biotech, manufacturing, aviation, automotive, medical devices, optics, tools and equipment, construction, consumer products, food and drink, agriculture, green energy, entertainment, and more.

The short answer is because of our:

Experience in patent law
Focus on patent law
Experience in many industries
Likely experience in your industry
Engineering background
Directness as to pros and cons and trade-offs
Clarity in explaining complex legal terms and situations
Free info (on this site, on YouTube, and in our book)
Long track record of helping inventors, as documented in their reviews
Laid-back California demeanor (rare in patent attorneys)

Of course, you can determine for yourself whether we’re a good fit (and why) by scheduling a consultation.

    
 
 
       Posted on Google  
    Josh C 
 April 24, 2026.
 
 
 Trustindex verifies that the original source of the review is Google. James is great he listened to my whole process and was able to have a frank conversation about where I am and what options I have. Options I didn’t know were possible. Thank you for your time and for giving me sound advice and structure.
  
 
      Posted on Google  
    Jeremy Weiss 
 February 12, 2026.
 
 
 Trustindex verifies that the original source of the review is Google. Great, quick and reasonable assistance on utility patent application. Would recommend for IP needs.
  
 
      Posted on Google  
    Tyler Tran 
 February 1, 2026.
 
 
 Trustindex verifies that the original source of the review is Google. Had a nice conversation with James. He’s very knowledgeable and had lots of information which he shared. It was definitely worth contacting him.
  
 
      Posted on Google  
    Noah Maxwell 
 December 16, 2025.
 
 
 Trustindex verifies that the original source of the review is Google. Very helpful and smart!
  
 
      Posted on Google  
    Garrett Trethewey 
 November 6, 2025.
 
 
 Trustindex verifies that the original source of the review is Google. James was a rockstar! Reached out to me prior to our meeting and was very proactive in everything we needed to get our trademark! Would recommend him 500 times out of 10!!!!
  
 
      Posted on Google  
    Alison Guydan 
 October 27, 2025.
 
 
 Trustindex verifies that the original source of the review is Google. James was very knowledgeable and took his time to explain the process and what to expect so I feel like I had all my questions answered. He provided great insight and punctual responses.
  
 
      Posted on Google  
    Mary Keenan 
 September 17, 2025.
 
 
 Trustindex verifies that the original source of the review is Google. James was a kind and thoughtful advisor. He spent time getting to know my situation and showed a sincere interest in making sure I had the clearest path forward.
  
 
      Posted on Google  
    Jim San-Martin 
 August 27, 2025.
 
 
 Trustindex verifies that the original source of the review is Google. I enjoyed my conversation with James.  He was very informative, personable, and was able to set me in the right direction concerning my patent.  He will definitely be considered for my attorney as I move forward in the patent process!
  
 
      Posted on Google  
    Peter Park 
 July 25, 2025.
 
 
 Trustindex verifies that the original source of the review is Google. What a journey for our organization to Patent Approval!

Working with James Yang (OC Patent Lawyer) has been an outstanding experience from start to finish. As an entity focused on innovation and utility patents, we needed a partner who could not only understand our technical vision but also guide us strategically through the USPTO process. James delivered on every front.

James demonstrated deep expertise in patent law, offered clear and practical advice, and was highly responsive throughout. The application James drafted was not only well-written and thorough, but it also reflected a true understanding of the core value of our invention.

What truly set James apart was his ability to communicate complex legal points in a way that made sense for both our business team and our engineering staff. Our organization felt fully supported and confident at every stage — from prior art searches to final submission.

I would highly recommend to any individual or company seeking top-tier patent representation. We look forward to continuing our partnership on future filings.

Keep up the excellent work!
  
 
  
  
 
 
   Google rating score: 4.9 of 5, based on 154 reviews

    
 
 
       Posted on Amazon  
   
   JHD 
 
 
 
 Verified Navigating the Patent System: Learn the WHYS of the fundamentals and strategies to protect your invention: Clear concise well organized
James Yang's writing on the patent prosecution process is the best public information I have seen in over 30 years work preparing patents for my inventions.Look no further.
  
 
      Posted on Amazon  
   
   Steve Long 
 
 
 
 Verified Navigating the Patent System: Learn the WHYS of the fundamentals and strategies to protect your invention: Required reading for the inventor
Great book. Really helps to understand the process of patenting. Perfect read before you go to the patent lawyer.
  
 
      Posted on Amazon  
   
   Jan Bouten 
 
 
 
 Verified Navigating the Patent System: Learn the WHYS of the fundamentals and strategies to protect your invention: must-read for inventors
Navigating the Patent System is the perfect book for anyone who knows absolutely NOTHING about patents, but has an idea or invention they would like to protect.  After reading Mr. Yang’s book, I am ready to submit a provisional patent!  This book took me from having so many questions and zero confidence, to scheduling appointments with several patent attorneys.  Furthermore, I have a game plan now in place for the patent process.  All of which did not exist before reading this book.  I highly recommend this book for graduates students, post docs, and faculty in academic institutions.  Frankly, I don’t understand why it isn’t offered as a course for grad students.
  
 
      Posted on Amazon  
   
   Jax Fl. Guy 
 
 
 
 Verified Navigating the Patent System: Learn the WHYS of the fundamentals and strategies to protect your invention: A gold mine of patent tips
First off, I have patents. I have worked with patent attorneys. I wish Id read this book from start.I will say most people, as the author suggests should hirecan attorney, and read this first. No one UNDERSTANDS your product more than you so read this to better understand the process of protecting your product. I will not begin to explain the points I like about this book, there are too many. I will say, Apter working with an attorney and riding much of my own patent descriptions and claims this book made me rethink many many things in a positive note. This book also made me aware that I had hired a very poor attorney had I read this book 1st I would not have made this mistake because I would have seen it even more clear then I had suspected halfway into my process. I have bought several books on the subject and this is by far my favorite for the simple reasons that he is very clear and concise with his wording and descriptions of certain situations and comparatives patent processes in relation to something you may be doing. Patents ARE confusing, but the author helps to clear up much of what makes it so. The language of describing an invention IS complicated, but he explains it in a way to make it all much easier to wrap your arms around.Regardless of how your filing a patent, buy the book. It is a very small investment into protecting your product / idea.
  
 
      Posted on Amazon  
   
   WilonaWoods 
 
 
 
 Verified Navigating the Patent System: Learn the WHYS of the fundamentals and strategies to protect your invention: This book saved me from Googling myself to death!
I came across this book after a few days of exhausting online research trying to learn more about the patent process.  After reading the articles on Mr. Yang's website, I suspected his book would provide the clear and complete explanation that I needed, and I was right!  This book is thorough, well-organized, super helpful and a surprisingly easy read for such a complex issue.  Skip all the Googling and buy this book... I'm sure you'll find it as helpful and informative as I did!
  
 
      Posted on Amazon  
   
   Simon Baek 
 
 
 
 Verified Navigating the Patent System: Learn the WHYS of the fundamentals and strategies to protect your invention: This is a must read
If you are thinking of patenting an invention or inventing something, this is a must read. "Navigating the Patent System" does just that. It clearly goes over everything you need to know to consider whether to patent or not. I first went to a patent lawyer before I read this book and was confused, frustrated, and lost. After reading this book, I felt like I knew what I wanted and how to accomplish it. I was able to talk to the lawyer in a direct and decisive way. This book helped me consider obstacles I never thought of and allowed me to make a wise decision with volition and intention.
  
 
      Posted on Amazon  
   
   peter d 
 
 
 
 Verified Navigating the Patent System: Learn the WHYS of the fundamentals and strategies to protect your invention: Nice easy to read book
Nice easy to read book... I do agree you need an attorney.. This book will allow you to follow along with attorney so you are not totally in the dark.
  
 
      Posted on Amazon  
   
   Sarah  
 
 
 
 Verified Navigating the Patent System: Learn the WHYS of the fundamentals and strategies to protect your invention: Helpful intro to patent system
Useful guide regarding the various aspects of filing a patent, some common questions, and important considerations.  Great for those exploring a patent
  
 
      Posted on Amazon  
   
   Homi 
 
 
 
 Verified Navigating the Patent System: Learn the WHYS of the fundamentals and strategies to protect your invention: Answers all question you may have and all questions you could not even think of, it is a great book.
This being my first time applying for a patent on my own, I have been searching online to educate myself before embarking on this venture. This book has ALL the answers to all my questions, and all the answers to all the questions I could not think of. Its a great book, very educational and helpful.