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 Shook, Hardy & Bacon LLP, Lewis Rice LLC, and Leggett & Platt Incorporated.

Top cities in Missouri

All practitioners in Missouri

Meagan K. Nydegger

Reg. 82554

Patent attorney

Lewis Rice LLC

St. louis, MO · 63101

314-444-7771

Andrew D O'Brien

Reg. 57064

Patent attorney

Shook, Hardy & Bacon LLP

Kansas City, MO · 64108

816-474-6550

Michael T O'Brien

Reg. 47830

Patent attorney

Des Peres, MO · 63131

314-965-8052

Paul D O'Brien

Reg. 42949

Patent attorney

Leggett & Platt Incorporated

Carthage, MO · 64836-0757

417-358-8131

Kevin J O'Shea

Reg. 51041

Patent attorney

Oshea Law, LLC

Jackson, MO · 63755

573-388-2296

Thomas Ryan O'Toole

Reg. 56575

Patent attorney

Gibbs Pool and Turner, P.C.

Jefferson City, MO · 65109

573-636-2614

Elizabeth D Odell

Reg. 39532

Patent attorney

St. Louis, MO · 63104

314-773-4838

Nathan E Oleen

Reg. 58399

Patent attorney

Husch Blackwell Sanders LLP

Kansas City, MO · 64112

816--98-3-8237

Katherine A. Ozorkiewicz

Reg. 83809

Patent agent

Shook Hardy & Bacon LLP

Kansas City, MO · 64108

816-617-1156

Rashel L. Pack

Reg. 80170

Patent attorney

Bayer U.S. - Crop Science

St. Louis, MO · 63167

417-224-6222

Meenu S. Padmanabhan

Reg. 81321

Patent agent

Chesterfield, MO · 63017

240-305-5258

Brian G Panka

Reg. 53430

Patent attorney

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

St. Louis, MO · 63105

314-726-7500

Jacqueline A. Parker

Reg. 84055

Patent agent

c/o Career Development Office

Columbia, MO · 65211

816-226-8785

Bryan T Paschke

Reg. 57735

Patent attorney

Des Peres, MO · 63131

314-680-0927

Paul L Passley

Reg. 22133

Patent attorney

Chesterfield, MO · 63017

Kalpesh J Patel

Reg. 55950

Patent attorney

The Patel Law Firm, LLC

Independence, MO · 64050

816-833-7060

Sharon Elaine Payne

Reg. 38268

Patent attorney

St. Louis, MO · 63128

571-249-7542

Mary J. Peal

Reg. 63978

Patent attorney

Shook, Hardy & Bacon LLP

Kansas City, MO · 64108

816-474-6550

David A Pearson

Reg. 58574

Patent attorney

Clark & Pearson LLC

Grain Valley, MO · 64029

816-847-5366

Kevin Peek

Reg. 83683

Patent attorney

Gordon Rees Scully Mansukhani, LLP

St. Louis, MO · 63102

314-961-6686

Veo Peoples· Jr

Reg. 27048

Patent attorney

Attorney at Law

Manchester, MO · 63021

314-630-2147

Bret Joseph Petersen

Reg. 37417

Patent attorney

Carthage, MO · 64836

417-388-0503

Kathleen Markowski Petrillo

Reg. 35076

Patent attorney

Senniger Powers LLP

St Louis, MO · 63102

314-345-7000

Michael David Petzoldt

Reg. 53462

Patent agent

TransTek INC

Chesterfield, MO · 63005

636-227-9433

John W Podobinski

Reg. 80775

Patent attorney

Armstrong Teasdale LLP

St. Louis, MO · 63105

617-824-5060

Laura R Polcyn

Reg. 47000

Patent attorney

Senniger Powers Leavitt and Roedel

Saint Louis, MO · 63102

314-231-5400

Thomas Andrew Polcyn

Reg. 41256

Patent attorney

Thompson Coburn, LLP

Saint Louis, MO · 63101

314-552-6000

Jonathan G Pollmann

Reg. 71702

Patent agent

Senniger Powers

St. Louis, MO · 63102

314-345-7000

J Philip Polster

Reg. 24739

Patent attorney

Polster Lieder Woodruff and Lucchesi LC

Saint Louis, MO · 63131-3615

314-238-2400

Lawrence S Pope

Reg. 26791

Patent attorney

Lawrence S Pope Attorney at Law

Fontenac, MO · 63131

312-752-0725

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.