#1James F Ryley
Serves this area from Downey, CA (0 mi)
Patent Attorneys & Agents in Downey, CA
The top-ranked patent attorneys and agents serving Downey, CA are James F Ryley, Michael H Bourdaa and Piwen Wang. We list 2859 patent attorneys and agents serving Downey, 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 Downey, CA (Los Angeles County). 2859 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 Downey
#2Michael H Bourdaa
Serves this area from Downey, CA (0 mi)#3Piwen Wang
Serves this area from Downey, CA (0 mi)#4Jorge A. Lopez
Serves this area from Downey, CA (1 mi)#5Kevin M. Ninomiya
Serves this area from Downey, CA (1 mi)#6Bryan E Johnson
Serves this area from Paramount, CA (3 mi)#7Mehdi Poursoltani (UTULAW PC)
Serves this area from Paramount, CA (3 mi)#8Naomi R Gonzalez
Serves this area from Norwalk, CA (3 mi)#9Wiliulfo A Gonzalez
Serves this area from Norwalk, CA (3 mi)#10James E Hawes
Serves this area from Norwalk, CA (4 mi)
20 more providers serving this area
- Reborn Van, Norwalk, CA (4 mi)
- Shih-Hao Wei, Santa Fe Springs, CA (4 mi)
- Yimin Wang (Norman International, Inc.), Santa Fe Springs, CA (4 mi)
- Joseph F Von Sauers III (Roland Corporation US), Commerce, CA (4 mi)
- Amy S Lai, Montebello, CA (5 mi)
- Maria Erlinda CO Sarno (Law Office Of Maria Erlinda C Sarno), Artesia, CA (6 mi)
- Chao-Ling Kuo, Cerritos, CA (6 mi)
- Cherng H Chao, Cerritos, CA (6 mi)
- Emil J Ali (McCabe & Ali, LLP), Cerritos, CA (6 mi)
- Jon Ustundag (Atkinson, Andelson, Loya, Ruud & Romo), Cerritos, CA (6 mi)
- Ogechi O Ifemembi, Cerritos, CA (6 mi)
- Gilbert J Villaflor, Lakewood, CA (6 mi)
- Sheila R Gibson (Aura IP Law, PC), Lakewood, CA (6 mi)
- Kenneth L Green (Averill and Green), Whittier, CA (6 mi)
- Nicholas Watts Gebelt, Whittier, CA (7 mi)
- Al A Canzoneri, South Whittier, CA (7 mi)
- In Soon Kim (La County King), Willowbrook, CA (7 mi)
- Michael A Longo, CA
- Elizabeth Yang (LAW & MEDIATION OFFICES OF ELIZABETH YANG), Monterey Park, CA (8 mi)
- Hannah M Tien, Monterey Park, CA (8 mi)
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Frequently asked questions
How many patent attorneys and agents serve Downey?
We list 2859 patent attorneys and agents serving Downey, CA: 0 based there and 2859 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 Downey?
The top-ranked patent attorneys and agents serving Downey, CA are James F Ryley, Michael H Bourdaa, Piwen Wang, Jorge A. Lopez and Kevin M. Ninomiya. The full ranked list, with the official records each provider matched, is on this page.
Which patent attorneys and agents serving Downey are verified against official records?
10 of the top 10 match an active official record: James F Ryley (U.S. Patent and Trademark Office), Michael H Bourdaa (U.S. Patent and Trademark Office), Piwen Wang (U.S. Patent and Trademark Office), Jorge A. Lopez (U.S. Patent and Trademark Office) and Kevin M. Ninomiya (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 .