Missouri

Patent attorneys in Missouri

Missouri hosts 666 active patent practitioners registered with the USPTO Office of Enrollment and Discipline. Patent attorneys and patent agents can both prepare and file patent applications, but only patent attorneys can also offer legal advice on prosecution strategy, freedom-to-operate analyses, and infringement opinions in Missouri. Practitioners are concentrated across 20 cities, with the largest clusters in the metros listed below. Notable firms with multiple registered practitioners in the state include Armstrong Teasdale LLP, Monsanto Company, and Armstrong Teasdale, LLP.

Top cities in Missouri

All practitioners in Missouri

Alexander M. Bridge

Reg. 75434

Patent agent

Aurora, MO · 65605

317-572-8093

Richard L Bridge

Reg. 40529

Patent attorney

Armstrong Teasdale, LLP

St. Louis, MO · 63105

314-621-5070

Natalie K. Brock

Reg. 82020

Patent attorney

Stinson

Kansas City, MO · 64106

816-691-2634

Richard L Brophy

Reg. 69736

Patent attorney

Armstrong Teasdale LLP

St. Louis, MO · 63105

314-342-4159

Eric P. Brueckner

Reg. 72134

Patent agent

Shook Hardy & Bacon LLP

Kansas City, MO · 64108

816-559-0361

Eric H. Brunngraber

Reg. 78090

Patent attorney

Armstrong Teasdale LLP

St. Louis, MO · 63105

314-259-4723

Barbara A Bryan

Reg. 52665

Patent agent

Solae, LLC

St. Louis, MO · 63110

314-659-3016

Cari R Bryant Arnold

Reg. 68898

Patent agent

Shook, Hardy & Bacon L.L.P.

Kansas City, MO · 64108-2613

816-474-6550 X12519

Lloyd G Buchanan

Reg. 42369

Patent agent

St. Peters, MO · 63304

636-928-1422

Terin E Budine

Reg. 80784

Patent agent

Bayer US - Crop Science

Chesterfield, MO · 63017

816-262-5184

Ronald Alan Burchett

Reg. 62453

Patent attorney

Nestle Purina

Saint Louis, MO · 63164

314-982-1993

Joseph M Butscher

Reg. 48326

Patent attorney

THE SMALL PATENT LAW GROUP LLP

St. Louis, MO · 63105

314-584-4080

E Michael Byorick

Reg. 34131

Patent attorney

Lathrop & Gage LP

Kansas City, MO · 64108

816-292-2000

Jesse J Camacho

Reg. 51258

Patent attorney

Practus, LLP

Kansas City, MO · 64156

816-343-4301

Dutro Evans Campbell

Reg. 46239

Patent attorney

Campbell IP

St. Louis, MO · 63108

636-686-8331

Randy Lawrence Canis

Reg. 44584

Patent attorney

Smarter Technologies ,L.L.C .

Chesterfield, MO · 63017

314-369-7182

Edward J Cargill

Reg. 83617

Patent agent

Bayer Crop Science

Chesterfield, MO · 63017

314-616-1769

Amanda J Carmany-Rampey

Reg. 69798

Patent attorney

Monsanto Company

Chesterfield, MO · 63017

636-737-7089

Joseph C Carr· Jr

Reg. 28402

Patent attorney

MiTek USA, Inc.

Chesterfield, MO · 63012

314-851-7479

Matthew T Carr

Reg. 80746

Patent agent

Husch Blackwell LLP

St. Louis, MO · 63105

314-345-6536

Christopher R Carroll

Reg. 52700

Patent attorney

The Small Patent Law Group LLP

Saint Louis, MO · 63105

314-584-4095

Corey M Casey

Reg. 66950

Patent attorney

Polsinelli PC

Kansas City, MO · 64112

816-753-1000

Alan L Cassel

Reg. 35842

Patent attorney

Saint Peters, MO · 63376

636-898-6850

Kathleen E Chaffee

Reg. 69903

Patent agent

Gates Agricultural Innovations

St. Louis, MO · 63108

314-330-4913

Arpana S. Chaudhary

Reg. 76585

Patent agent

St. Louis, MO · 63141

404-435-9814

David H Chervitz

Reg. 32820

Patent attorney

Chesterfield, MO · 63017

314-398-0711

Timothy J Cheuk

Reg. 69617

Patent attorney

Ballwin, MO · 63011

314-482-5380

David J. Chi

Reg. 61797

Patent agent

Monsanto Company

Chesterfield, MO · 63017

636-737-6650

Jingxi Chu

Reg. 54594

Patent attorney

Nanova, Inc.

Columbia, MO · 65202

573-808-2270

Sung Chung

Reg. 69911

Patent agent

Shook, Hardy and Bacon LLP

Kansas City, MO · 64108

816-474-6550

Common questions

Do I need a patent attorney based in Missouri?

No. Every USPTO-registered patent practitioner is licensed to file applications on behalf of inventors in any state, regardless of where the practitioner's office is. Choosing a Missouri-based practitioner can simplify in-person inventor signings, local meetings, and same-time-zone calls, but it is not a legal requirement.

How many patent attorneys are licensed in Missouri?

666 active USPTO-registered patent practitioners list a Missouri office address on the OEDCI roster. This includes both patent attorneys (who can also offer legal advice) and patent agents (who can prepare and file patents but not offer broader legal advice).

What is the difference between a patent attorney and a patent agent?

Both pass the USPTO Patent Bar and can prepare, file, and prosecute patent applications. Only patent attorneys also hold a state bar license, meaning they can additionally offer legal advice on infringement, licensing, and litigation strategy. Patent agents tend to charge less per hour and are common at large in-house IP departments.