#1Marcel Leon Haulard
Based in MO
Patent Attorneys & Agents in Warren County, MO
The top-ranked patent attorneys and agents serving Warren County, MO are Marcel Leon Haulard, Bruce T Atkins (Bruce T. Atkins Intellectual Property) and Terry A Witthaus. We list 19 patent attorneys and agents serving Warren County, MO. 19 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 Warren County, MO. 19 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 Warren County
#2Bruce T Atkins (Bruce T. Atkins Intellectual Property)
Serves this area from MO#3Terry A Witthaus
Serves this area from MO#4Peter T Rasche (Synergetics, Inc.)
Serves this area from O'Fallon, MO (23 mi)#5Raymond W Deppen
Serves this area from O'Fallon, MO (23 mi)#6Timothy B McBride (Mastercard International Incorporated)
Serves this area from O'Fallon, MO (23 mi)#7Martha Ann Michaels (Law Office of Martha A. Michaels)
Serves this area from St. Paul, MO (24 mi)#8Tanner O. Hall
Serves this area from MO#9Lloyd G Buchanan
Serves this area from Weldon Spring Heights, MO (26 mi)#10Alan L Cassel
Serves this area from St. Peters, MO (30 mi)
9 more providers serving this area
- Michelle J Smith (Law Offices of Michelle Smith), St. Peters, MO (30 mi)
- Paul D Markowitz (SunEdison Semiconductor LLC), St. Peters, MO (30 mi)
- Prema S. Karunanithi, MO
- Steven D Heinrich, MO
- John Robert Miller, Owensville, MO (34 mi)
- Benjamin M. Lawson, MO
- Joseph M. Ellsworth, MO
- Raymond J. Whitehill II (Pontello, Bressler, Norwood, and Associates), MO
- Sandeep Kumar, MO
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Frequently asked questions
How many patent attorneys and agents serve Warren County?
We list 19 patent attorneys and agents serving Warren County, MO: 1 based there and 18 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 Warren County?
The top-ranked patent attorneys and agents serving Warren County, MO are Marcel Leon Haulard, Bruce T Atkins (Bruce T. Atkins Intellectual Property), Terry A Witthaus, Peter T Rasche (Synergetics, Inc.) and Raymond W Deppen. The full ranked list, with the official records each provider matched, is on this page.
Which patent attorneys and agents serving Warren County are verified against official records?
10 of the top 10 match an active official record: Marcel Leon Haulard (U.S. Patent and Trademark Office), Bruce T Atkins (Bruce T. Atkins Intellectual Property) (U.S. Patent and Trademark Office), Terry A Witthaus (U.S. Patent and Trademark Office), Peter T Rasche (Synergetics, Inc.) (U.S. Patent and Trademark Office) and Raymond W Deppen (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 .
Communities served
Warrenton, Wright City, Marthasville, Truesdale, Innsbrook, Pendleton, Three Creeks