Our attorneys have been featured in local and national media as trusted sources on intellectual property and trademark issues.

Female engineer working on industrial design plans

Los Angeles Intellectual Property Lawyers

Representing Clients in Patent, Trademark, Copyright, and Trade Secret Matters

Cohen IP Law Group, P.C. was established to help individuals and businesses develop and protect their intellectual property assets. We have filed thousands of trademark and patent applications for clients from startups to established companies in California, the United States, and throughout the world.


Mr. Cohen is a strategic litigator and was always thinking three steps ahead in our matter. He obtained solid results without deviating from our goals.

— Former In-house Counsel For Kohls


Winning Results

It's what our clients love about us.

Whether you need assistance with one issue or wish to establish a more extensive growth relationship, we aim to provide exceptional service and results every time.


The Cohen IP team executes each of their respective functions within the patent and trademark processes with precision and excellence. The combined synergy of the Cohen team has helped me secure 3 utility patents and 2 trademarks so far. On top of all of this, this gang is great to work with!

— Daniel C., Venice, CA

Man and woman discussing plans

Ranked among the top trademark lawyers in the U.S.

We are ranked among the top trademark lawyers in the U.S. by Intellectual Property Today Magazine and have been nominated as the top California Trademark Infringement Law Firm by Global Law Experts.

We specialize in filing Patent, Trademark, and Copyright applications; IP litigation; business transactions and disputes, and startup issues. We counsel software and technology companies, apparel and clothing lines, the food and restaurant industry, entertainment companies, and other fields.

Meet The Team


I have been working with The Cohen IP Law Group for over 16 years; they made registering all of our trademarks a breeze.

- David O.

Mr. Cohen is the founder and principal attorney of the Cohen IP Law Group, P.C.


Mr. Sutton has more than 30 years of intellectual property litigation experience.


Mr. Barsness works in business, corporate, and real estate law.


Mr. Goluza holds a Juris Doctorate from Southwestern Law School.


We've Provided IP Protection for


Although we are Los Angeles based patent and trademark attorneys, the nature of federal law allows us to represent clients throughout the United States in addition to serving our international clients.

Litigation & Start Ups

Portrait, startup cafe manager man with tablet

Patent Infringement
Trademark Infringement
Copyright Infringement
TTAB Opposition & Cancellation
ITC & Counterfeit Defense
Business Litigation
Domain Name Disputes & UDRP

Corporation Formation
Limited Liability Company, LLC
Bylaws & Operating Agreements
Stock-Option Plans
Convertible Notes
Equity & Investor Agreements
Founder & Employee
IP Assignment

Should we form a corporation for our startup?

Is our app patentable?

Can we trademark our apparel clothing brand?

What is the patent process?

Let our experienced legal team guide you through the U.S. or international patent process.

Steps for trademark infringement.

What does a trademark protect, and what are the advantages of having a trademark?