Patent Attorneys & Agents in Contra Costa County, CA

The top-ranked patent attorneys and agents serving Contra Costa County, CA are Abelard J Godoy, Alan Waldo Klaassen (Chevron Corporation) and Aleksandr Korzh. We list 1776 patent attorneys and agents serving Contra Costa County, CA. 30 of the providers shown match an active record from U.S. Patent and Trademark Office, checked on the date shown. Rankings follow our published methodology; sponsored placements never change rank.

Patent Attorneys & Agents serving Contra Costa County, CA. 1776 providers, 10 of the top 10 verified against federal or state records. Registry records checked on 2026-11-04.

Top 10 ranked patent attorneys and agents for Contra Costa County

20 more providers serving this area

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Frequently asked questions

How many patent attorneys and agents serve Contra Costa County?

We list 1776 patent attorneys and agents serving Contra Costa County, CA: 282 based there and 1494 serving it from nearby. 10 of the top 10 match an active federal or state record, checked on 2026-11-04.

Which patent attorneys and agents serve Contra Costa County?

The top-ranked patent attorneys and agents serving Contra Costa County, CA are Abelard J Godoy, Alan Waldo Klaassen (Chevron Corporation), Aleksandr Korzh, Alexander B. Castanares (YHE Law LLP) and Ali Reza Shamshiri Rad (Law Office of Alex Rad). The full ranked list, with the official records each provider matched, is on this page.

Which patent attorneys and agents serving Contra Costa County are verified against official records?

10 of the top 10 match an active official record: Abelard J Godoy (U.S. Patent and Trademark Office), Alan Waldo Klaassen (Chevron Corporation) (U.S. Patent and Trademark Office), Aleksandr Korzh (U.S. Patent and Trademark Office), Alexander B. Castanares (YHE Law LLP) (U.S. Patent and Trademark Office) and Ali Reza Shamshiri Rad (Law Office of Alex Rad) (U.S. Patent and Trademark Office), and 5 more on this page. Each badge links to the official record it matched.

How are these companies ranked?

By our published methodology: verified registrations, documented capabilities, years registered and responsiveness. Sponsored placements are shown separately and never affect rank.

What does "Verified" mean on this page?

"Verified" means we matched the provider to an active official record on the date shown; each badge links to that record. The absence of a badge only means we have not verified that item.

What is the difference between a patent attorney and a patent agent?

Both are registered with the USPTO to prepare and prosecute patent applications. Patent attorneys are also licensed lawyers and can handle litigation and other legal matters; agents cannot.

"Verified" means we matched the provider to an active official record on the date shown. The absence of a badge only means we have not verified that item. How we rank and verify. Page updated .

Cities in Contra Costa County

Communities served

Oakley, Danville, Martinez, Pleasant Hill, San Pablo, Hercules, El Cerrito, Lafayette, Bay Point, Orinda, Pinole, Moraga, El Sobrante, Discovery Bay, Alamo, Clayton, Rodeo, Blackhawk, Contra Costa Centre, Saranap, Kensington, Tara Hills, Camino Tassajara, Vine Hill, Pacheco, North Richmond, San Miguel, East Richmond Heights, Reliez Valley, Crockett, Montalvin Manor, Rollingwood, Mountain View, Bethel Island, Bayview, Knightsen, Norris Canyon, Acalanes Ridge, Castle Hill, Diablo, Byron, Shell Ridge, Alhambra Valley, Clyde, North Gate, Port Costa