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, Husch Blackwell LLP, and Polsinelli PC.

Top cities in Missouri

All practitioners in Missouri

Andrea Julian Porterfield

Reg. 55311

Patent attorney

Polsinelli PC

Kansas City, MO · 64112

816-753-1000

John E. Pritchard

Reg. 69174

Patent agent

Benson Hill, Inc.

St. Louis, MO · 63132

636-737-8754

Kevin Michael Pumm

Reg. 49046

Patent attorney

The Boeing Company

Saint Louis, MO · 63166-0516

314-777-8203

Chao Qu

Reg. 75366

Patent agent

Saint Louis, MO · 63108

314-728-4987

Brendan M. Quinn

Reg. 74644

Patent attorney

Kansas City, MO · 64114

913-669-1269

Homayoon Rafatijo

Reg. 80870

Patent attorney

Spencer Fane LLP

Kansas City, MO · 64106

816-292-8852

Leanne M Rakers

Reg. 64412

Patent attorney

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

St. Louis, MO · 63105

314-726-7514

Eric J. Rakestraw

Reg. 68740

Patent attorney

Senniger Powers LLP

St. Louis, MO · 63102

314-345-7000

Rudyard Kent Rapp

Reg. 20724

Patent attorney

Saint Louis, MO · 63131

314-567-5703

Patrick W Rasche

Reg. 37916

Patent attorney

Armstrong Teasdale LLP

St. Louis, MO · 63105

314-621-5070

Peter T Rasche

Reg. 57527

Patent attorney

Synergetics, Inc.

O'Fallon, MO · 63368

636-794-5057

Donald D Raymond· Jr.

Reg. 61666

Patent attorney

Armstrong Teasdale LLP

St. Louis, MO · 63105

314-621-5070

Kyle D Reather

Reg. 79566

Patent agent

Kansas City, MO · 64111

918-639-4833

John M Rebman

Reg. 66968

Patent attorney

Monsanto Company

St. Louis, MO · 63167

314-694-5043

Paige E. Reese

Reg. 79704

Patent attorney

Husch Blackwell LLP

Kansas City, MO · 64112

816-983-8240

Robert B Reeser· III

Reg. 45548

Patent attorney

Stinson LLP

Saint Louis, MO · 63105

314-345-7681

Robert L. Reilly

Reg. 76698

Patent attorney

Husch Blackwell LLP

Kansas City, MO · 64112

816-983-8232

Patric M. Reinbold

Reg. 79178

Patent attorney

Saint Louis, MO · 63122

314-501-0051

Brian F. Reinhold

Reg. 62047

Patent attorney

Law Office of Brian F. Reinhold, P.C.

Kirkwood, MO · 63122

314-909-4701

John D Reinsel

Reg. 36900

Patent attorney

The Law Office of John Reinsel, LLC

St Louis, MO · 63127

314-698-4612

Rebecca L Rich

Reg. 68063

Patent attorney

Brewer Science, Inc.

Rolla, MO · 65401

573-364-0300

Sarah L. Rieth

Reg. 78818

Patent agent

Kansas City, MO · 64156

660-353-1975

Marie L Riley

Reg. 71961

Patent attorney

bioMerieux, Inc.

Hazelwood, MO · 63042

314-731-8500

Michael Anthony Riley

Reg. 45043

Patent attorney

Law Office of Michael A Riley LLC

Parkville, MO · 64152

650-804-2139

Michael C Risberg

Reg. 75490

Patent attorney

Missouri Court of Appeals - Southern District

Springfield, MO · 65806

417-719-3784

Steven Mark Ritchey

Reg. 46321

Patent attorney

Thompson Coburn LLP

St. Louis, MO · 63101

314-552-6232

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

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.