Missouri

Patent attorneys in Missouri

Missouri hosts 670 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 Monsanto Company, Spencer Fane Britt & Browne, LLP, and Monsanto Technology LLC.

Top cities in Missouri

All practitioners in Missouri

Glenn Kingsland Robbins· II

Reg. 33275

Patent attorney

Spencer Fane Britt & Browne, LLP

St. Louis, MO · 63105

314-863-7733

Erin C. Robert

Reg. 63039

Patent attorney

Monsanto Technology LLC

St. Louis, MO · 63167

314-694-7906

Douglas A Robinson

Reg. 59703

Patent attorney

Harness, Dickey & Pierce, P.L.C.

St. Louis, MO · 63105

314-726-7500

Kevin P. Rollins

Reg. 64260

Patent attorney

Kevin P. Rollins

Chesterfield, MO · 63017

913-908-3418

Joseph Michael Rolnicki

Reg. 32653

Patent attorney

Evans & Dixon, L.L.C.

St Louis, MO · 63102-1836

314--55-2-4044

Blake A Ronnebaum

Reg. 77971

Patent attorney

Polsinelli PC

Kansas City, MO · 64112

816-572-4684

David A Roodman

Reg. 35663

Patent attorney

Bryan Cave LLP

St. Louis, MO · 63102

314-259-2614

Matthew Abraham Rosenberg

Reg. 40149

Patent attorney

Law Offices of Matthew Rosenberg, LLC

Saint Louis, MO · 63017

314-256-9699

Katherine L Ross

Reg. 77589

Patent agent

Armstrong Teasdale, LLP

St. Louis, MO · 63105

314-621-5070

Michael Joseph Roth

Reg. 29342

Patent attorney

Agricultural Intellectual Property Law & Policy

St. Louis, MO · 63108

314-210-1832

Herman Frederick Rusche

Reg. 45061

Patent attorney

Husche Blackwell LLP

St. Louis, MO · 63105

314-480-1933

Michael R Rutherford

Reg. 70232

Patent agent

Blue Springs, MO · 64015

816-896-8080

Kathleen K Sadlo

Reg. 57130

Patent attorney

Saint Louis, MO · 63117

314-260-7762

Kimberly A Sahu

Reg. 73797

Patent attorney

Heck Law Group LLC

St. Louis, MO · 63017

314-477-3004

Ellaina R. Sanders

Reg. 83154

Patent agent

Kansas City, MO · 64154

816-689-8735

Mark D. Schafer

Reg. 72616

Patent agent

Kansas City, MO · 64112

573-819-9711

Bradley S Schammel

Reg. 54667

Patent attorney

KV Pharmaceutical

Saint Louis, MO · 63044

314-645-6600

Joseph Alan Schaper

Reg. 30493

Patent attorney

Monsanto Company

St Louis, MO · 63167

314-694-7652

David M Schatz

Reg. 48325

Patent attorney

ESCO Technologies Inc.

St. Louis, MO · 63124-1186

314--21-3-7257

Sydney E. Schein

Reg. 76460

Patent agent

St. Louis, MO · 63141-7710

314-997-7903

Michael G. Scheller

Reg. 74133

Patent agent

Shook Hardy & Bacon, LLP

Kansas City, MO · 64108

816-559-0460

Michael J. Schellhous

Reg. 79433

Patent agent

St. Louis, MO · 63129

909-534-7228

Brett A Schenck

Reg. 35347

Patent attorney

Creve Coeur, MO · 63141

440-263-1696

Ryan J Schletzbaum

Reg. 70850

Patent attorney

Shook, Hardy & Bacon, LLP

Kansas City, MO · 64108

816-474-6550

Kelley A. Schnieders

Reg. 62893

Patent attorney

Armstrong Teasdale LLP

Kansas City, MO · 64108

816-221-3420

Donald R Schoonover

Reg. 34924

Patent attorney

Law Offices Of Donald R Schoonover

Nixa, MO · 65714-8771

417-724-2188

Jennifer M. Schroeder

Reg. 70510

Patent attorney

Shook, Hardy & Bacon LLP

Kansas City, MO · 64108

816-474-6550

John R Schroeder

Reg. 63573

Patent attorney

St. Louis, MO · 63126

314-918-1351

Joseph R Schuh

Reg. 48180

Patent agent

Monsanto Company

Chesterfield, MO · 63017

636-737-5021

Earl R Schultz

Reg. 38034

Patent attorney

Schultz and Associates LLP

Chesterfield, MO · 63005

636-537-4645

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?

670 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.