#1Mary T M Edwards (Matthews Edwards LLC)
Serves this area from MO
Patent Attorneys & Agents in St. Charles, MO
The top-ranked patent attorneys and agents serving St. Charles, MO are Mary T M Edwards (Matthews Edwards LLC), Stephen R Matthews (Matthews Edwards LLC) and Prema S. Karunanithi. We list 321 patent attorneys and agents serving St. Charles, MO. 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 St. Charles, MO (St. Charles County). 321 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 St. Charles
#2Stephen R Matthews (Matthews Edwards LLC)
Serves this area from MO#3Prema S. Karunanithi
Serves this area from MO#4Steven D Heinrich
Serves this area from MO#5Bradley S Schammel (KV Pharmaceutical)
Serves this area from Bridgeton, MO (5 mi)#6Mark E Books (Hunter Engineering Company)
Serves this area from Bridgeton, MO (5 mi)#7Joseph M. Ellsworth
Serves this area from MO#8Raymond J. Whitehill II (Pontello, Bressler, Norwood, and Associates)
Serves this area from MO#9Sandeep Kumar
Serves this area from MO#10Alan L Cassel
Serves this area from St. Peters, MO (5 mi)
20 more providers serving this area
- Michelle J Smith (Law Offices of Michelle Smith), St. Peters, MO (5 mi)
- Paul D Markowitz (SunEdison Semiconductor LLC), St. Peters, MO (5 mi)
- Sanjay Agrawal (Elekta), Maryland Heights, MO (6 mi)
- Alyson S. Beldon (Air Products and Chemicals, Inc.), MO
- Careen Ghazal-Albar (CreatiVenture Law LLC), MO
- Donald R Ladwig (Engineering Software Research and Development, Inc.), MO
- Grace J Fishel, MO
- Kumar R Bhushan, MO
- Norman A Fishel, MO
- Anthony R Kinney (Mallinckrodt Pharmaceuticals), Hazelwood, MO (7 mi)
- Craig D Siman (Mallinckrodt Pharmaceuticals), Hazelwood, MO (7 mi)
- Daniel G Feder (The Boeing Company), Hazelwood, MO (7 mi)
- John A Lepore (Boeing), Hazelwood, MO (7 mi)
- John A. Yannuzzi (Cortrol Process Systems, Inc.), Hazelwood, MO (7 mi)
- Kenneth D Goetz (Mallinckrodt), Hazelwood, MO (7 mi)
- Marie L Riley (bioMerieux, Inc.), Hazelwood, MO (7 mi)
- Matthew L Balkenbusch (The Boeing Company), Hazelwood, MO (7 mi)
- Robert M Garrett (Robert M. Garrett), Florissant, MO (9 mi)
- Amanda J Carmany-Rampey (Monsanto Company), Chesterfield, MO (10 mi)
- Andrea P Denklau, Chesterfield, MO (10 mi)
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Frequently asked questions
How many patent attorneys and agents serve St. Charles?
We list 321 patent attorneys and agents serving St. Charles, MO: 0 based there and 321 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 St. Charles?
The top-ranked patent attorneys and agents serving St. Charles, MO are Mary T M Edwards (Matthews Edwards LLC), Stephen R Matthews (Matthews Edwards LLC), Prema S. Karunanithi, Steven D Heinrich and Bradley S Schammel (KV Pharmaceutical). The full ranked list, with the official records each provider matched, is on this page.
Which patent attorneys and agents serving St. Charles are verified against official records?
10 of the top 10 match an active official record: Mary T M Edwards (Matthews Edwards LLC) (U.S. Patent and Trademark Office), Stephen R Matthews (Matthews Edwards LLC) (U.S. Patent and Trademark Office), Prema S. Karunanithi (U.S. Patent and Trademark Office), Steven D Heinrich (U.S. Patent and Trademark Office) and Bradley S Schammel (KV Pharmaceutical) (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 .