#1Barbara A Schweitzer (Nestle Purina)
Serves this area from St. Louis, MO (0 mi)
Patent Attorneys & Agents in St. Louis, MO
The top-ranked patent attorneys and agents serving St. Louis, MO are Barbara A Schweitzer (Nestle Purina), Christopher M Luzecky (Bayer US LLC) and Chunping Li (Monsanto Company). We list 438 patent attorneys and agents serving St. Louis, 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. Louis, MO (St. Louis city). 438 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. Louis
#2Christopher M Luzecky (Bayer US LLC)
Serves this area from St. Louis, MO (0 mi)#3Chunping Li (Monsanto Company)
Serves this area from St. Louis, MO (0 mi)#4Dennis Russell Hoerner Jr (Monsanto Company)
Serves this area from St. Louis, MO (0 mi)#5Donald W Tuegel (The Boeing Company)
Serves this area from St. Louis, MO (0 mi)#6Erin C. Robert (Monsanto Technology LLC)
Serves this area from St. Louis, MO (0 mi)#7Haisheng Lu (Monsanto Company)
Serves this area from St. Louis, MO (0 mi)#8Jacob R Mueller (Nestle Purina Petcare Company)
Serves this area from St. Louis, MO (0 mi)#9John M Rebman (Monsanto Company)
Serves this area from St. Louis, MO (0 mi)#10Joseph Alan Schaper (Monsanto Company)
Serves this area from St. Louis, MO (0 mi)
20 more providers serving this area
- Julie M Lappin (Nestle), St. Louis, MO (0 mi)
- Lawrence Michael Lavin Jr (Monsanto Company), St. Louis, MO (0 mi)
- Lori J Lehman (Monsanto), St. Louis, MO (0 mi)
- Pamela J Sisson (Bayer U.S. LLC), St. Louis, MO (0 mi)
- Paul S. Foryt (Nestle Purina Pet Care Global Resources, Inc.), St. Louis, MO (0 mi)
- Robert E Slenker (The Boeing Company), St. Louis, MO (0 mi)
- Sharhonda T Shahid (Shahid Law Firm), St. Louis, MO (0 mi)
- Timothy K Ball (Bayer CropScience LP), St. Louis, MO (0 mi)
- Adam L Bagwell (The Law Office of Adam L. Bagwell, LLC), St. Louis, MO (1 mi)
- Chao Qu, St. Louis, MO (1 mi)
- Daniel S Klotzer (Klotzer Patents), St. Louis, MO (1 mi)
- Dutro Evans Campbell (Campbell IP), St. Louis, MO (1 mi)
- Hansoo Song, St. Louis, MO (1 mi)
- Kathleen E Chaffee (Gates Agricultural Innovations), St. Louis, MO (1 mi)
- Michael Joseph Roth (Agricultural Intellectual Property Law & Policy), St. Louis, MO (1 mi)
- Michael W Noble (22nd Judicial Circuit Court of Missouri), St. Louis, MO (1 mi)
- Qing Wang (Gates Ag One), St. Louis, MO (1 mi)
- Randolph H. Bretton (The Law Offices of Randolph Bretton), St. Louis, MO (1 mi)
- Xiaoming Zhang (Bill & Melinda Gates Agricultural Innovations), St. Louis, MO (1 mi)
- Barbara A Bryan (Solae, LLC), St. Louis, MO (1 mi)
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Frequently asked questions
How many patent attorneys and agents serve St. Louis?
We list 438 patent attorneys and agents serving St. Louis, MO: 0 based there and 438 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. Louis?
The top-ranked patent attorneys and agents serving St. Louis, MO are Barbara A Schweitzer (Nestle Purina), Christopher M Luzecky (Bayer US LLC), Chunping Li (Monsanto Company), Dennis Russell Hoerner Jr (Monsanto Company) and Donald W Tuegel (The Boeing Company). The full ranked list, with the official records each provider matched, is on this page.
Which patent attorneys and agents serving St. Louis are verified against official records?
10 of the top 10 match an active official record: Barbara A Schweitzer (Nestle Purina) (U.S. Patent and Trademark Office), Christopher M Luzecky (Bayer US LLC) (U.S. Patent and Trademark Office), Chunping Li (Monsanto Company) (U.S. Patent and Trademark Office), Dennis Russell Hoerner Jr (Monsanto Company) (U.S. Patent and Trademark Office) and Donald W Tuegel (The Boeing Company) (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 .