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OC Patent Lawyer

Law Firm
4.9 (154 reviews)

About

Top-rated Orange County patent lawyer helping inventors across Orange County, Los Angeles County, and beyond. Handles patent applications, prosecution, and IP strategy from offices in Irvine, California.

Services

  • Patent Prosecution
  • Provisional Patent
  • Utility Patent
  • Trademark
  • Copyright
  • Trade Secret
  • IP Portfolio

Reviews

Google Reviews
Randolph Morris Dec 2024

James is very knowledgeable and professional. I appreciate he took the time to understand and consult me on my potential patent application.

Tyler Tran Feb 2026

Had a nice conversation with James. He’s very knowledgeable and had lots of information which he shared. It was definitely worth contacting him.

Noah Maxwell Dec 2025

Very helpful and smart!

Garrett Trethewey Nov 2025

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!!!!

Alison Guydan Oct 2025

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.

Mary Keenan Sep 2025

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.

Jim San-Martin Aug 2025

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 m...

Peter Park Jul 2025

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 util...

david azer Jul 2025

James was patient and knowledgeable during our consultation.

Elena K Jul 2025

My experience with James was very positive - he is professional, knowledgeable and easy to talk to. I appreciated his honesty about what patents he thinks will or won't work and what services I need o...

Marni Willis Jan 2025

I had a very productive initial consultation with James Yang. I’m in the ideation phase of my project and he offered great advice tailored to my current situation and what next steps would look like. ...

Jeremy Weiss Feb 2026

Great, quick and reasonable assistance on utility patent application. Would recommend for IP needs.

Gracie Trimble Apr 2025

Mr.Yang , thank you for your helpful thoughts, I really appreciate it

Brendan Salgado Apr 2025

Just had an initial consultation with James. He was extremely informative and transparent about the patenting process and beyond. Great source of knowledge and quick to find meaningful solutions. Look...

Brendan Salgado Apr 2025

James was very transparent and informative about the patenting process and pricing. Great consultation!

Jonathan Wat Apr 2025

Introductory Consultation - James was patient and transparent in answering my questions about patent regulations in the US, even though I was completely new to the process. He took the time to explain...

Harry Winter Jun 2025

Passive aggressive and rude over mail, kept cancelling and rescheduling the meeting. Completely unprofessional. I suggest looking elsewhere if you're serious about filing a patent.

Ricky L Apr 2025

I called and gave the receptionist a brief explanation of my case. He then asked for my name and phone number, and immediately said that they don’t handle such cases. So why ask for my name and number...

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