Patent Attorneys & Agents in San Antonio, TX

The top-ranked patent attorneys and agents serving San Antonio, TX are Ann Marie LaFeir (USAA), Anthony G Castiglione (USAA) and Janice Leverett (United Services Automobile Association). We list 134 patent attorneys and agents serving San Antonio, TX. 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 San Antonio, TX (Bexar County). 134 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 San Antonio

Ranked by our published methodology. Sponsored providers are shown separately.
#ProviderVerified recordsBased inPhone
1Ann Marie LaFeir (USAA)Registered to practice before the USPTO in patent matters#57868
San Antonio, TX (0 mi)(210) 498-0823
2Anthony G Castiglione (USAA)Registered to practice before the USPTO in patent matters#56051
San Antonio, TX (0 mi)(210) 498-0506
3Janice Leverett (United Services Automobile Association)Registered to practice before the USPTO in patent matters#44209
San Antonio, TX (0 mi)(210) 498-1306
4Jonathan A Kaplan (City Attorney's Office)Registered to practice before the USPTO in patent matters#60051
San Antonio, TX (0 mi)(210) 207-2198
5Nathan W Slimane (Law Office of Nathan W. Slimane)Registered to practice before the USPTO in patent matters#69730
San Antonio, TX (0 mi)(210) 492-3667
6Rafael V Baca (The R. Baca Law Firm PLLC)Registered to practice before the USPTO in patent matters#44016
San Antonio, TX (0 mi)(800) 595-6745
7Robert M BohanekRegistered to practice before the USPTO in patent matters#52627
San Antonio, TX (0 mi)(651) 270-5867
8Alan R Thiele (Rosenthal, Pauerstein, Sandoloski, Agather, LLP)Registered to practice before the USPTO in patent matters#30694
San Antonio, TX (2 mi)(210) 244-8840
9Cassidi Dietz Banales (Rosenthal Pauerstein Sandoloski Agather LLP)Registered to practice before the USPTO in patent matters#82756
San Antonio, TX (2 mi)(210) 244-8853
10Cline H White (Loeffler Tuggey Pauerstein & Rosenthal, LLP)Registered to practice before the USPTO in patent matters#45213
San Antonio, TX (2 mi)(210) 354-4300
20 more providers serving this area

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Frequently asked questions

How many patent attorneys and agents serve San Antonio?

We list 134 patent attorneys and agents serving San Antonio, TX: 0 based there and 134 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 San Antonio?

The top-ranked patent attorneys and agents serving San Antonio, TX are Ann Marie LaFeir (USAA), Anthony G Castiglione (USAA), Janice Leverett (United Services Automobile Association), Jonathan A Kaplan (City Attorney's Office) and Nathan W Slimane (Law Office of Nathan W. Slimane). The full ranked list, with the official records each provider matched, is on this page.

Which patent attorneys and agents serving San Antonio are verified against official records?

10 of the top 10 match an active official record: Ann Marie LaFeir (USAA) (U.S. Patent and Trademark Office), Anthony G Castiglione (USAA) (U.S. Patent and Trademark Office), Janice Leverett (United Services Automobile Association) (U.S. Patent and Trademark Office), Jonathan A Kaplan (City Attorney's Office) (U.S. Patent and Trademark Office) and Nathan W Slimane (Law Office of Nathan W. Slimane) (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 .

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