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 Monsanto Company, Engineering Software Research and Development, Inc., and Armstrong Teasdale LLP.

Top cities in Missouri

All practitioners in Missouri

Sandeep Kumar

Reg. 63939

Patent agent

St Charles, MO · 63301

317-366-4147

Robert B. Kutz

Reg. 80419

Patent agent

Columbia, MO · 65202

732-580-0814

Thomas J La Rosa

Reg. 61316

Patent agent

Monsanto Company

Chesterfield, MO · 63017

636-737-1816

Donald R Ladwig

Reg. 61777

Patent attorney

Engineering Software Research and Development, Inc.

St. Louis, MO · 63146

314-744-5021 X17

Joseph A Lanahan

Reg. 47732

Patent attorney

Armstrong Teasdale LLP

St. Louis, MO · 63102

314-621-5070

Robert G Lancaster

Reg. 43736

Patent attorney

Bryan Cave, LLP

Saint Louis, MO · 63102

314-259-22207

Laurie K Landgraf

Reg. 48278

Patent attorney

The Boeing CO

Saint Louis, MO · 63166

314-232-8201

David J. Lanzotti

Reg. 60765

Patent attorney

Chesterfield, MO · 63005

636-375-9139

Julie M Lappin

Reg. 46612

Patent attorney

Nestle

St. Louis, MO · 63164

314-982-5484

Alec V. Larsen

Reg. 79815

Patent attorney

Shook Hardy & Bacon LLP

Kansas City, MO · 64108

816-559-2834

Raymond P LaVera

Reg. 57819

Patent agent

University City, MO · 63130

314-726-5139

Lawrence Michael Lavin· Jr

Reg. 30768

Patent attorney

Monsanto Company

St. Louis, MO · 63167

314-737-5606

Mary D. Lawlor

Reg. 66313

Patent agent

The Small Patent Law Group LLC

St. Louis, MO · 63105

314-792-8042

Nolan M. Lawrence

Reg. 71493

Patent attorney

Peculiar, MO · 64078

816-728-1549

Benjamin M. Lawson

Reg. 81863

Patent agent

Sullivan, MO · 63080

636-734-9808

E Clifford Lawson

Reg. 46860

Patent agent

Monsanto Co

Chesterfield, MO · 63017

314-694-4760

Leslie L Lawson

Reg. 53185

Patent attorney

Hovey Williams LLP

Kansas City, MO · 64108

816-474-9050

William A. Laycock

Reg. 82351

Patent agent

North Kansas City, MO · 64116

816-548-8041

James J Leary

Reg. 35237

Patent agent

St. Louis, MO · 63128

314-270-3497

Richard J Lecinski

Reg. 53189

Patent attorney

Richard J. Lecinski

St Louis, MO · 63103

314-421-3100

John C Ledgerwood

Reg. 80619

Patent agent

Springfield, MO · 65804

417-988-4889

Kisuk Lee

Reg. 66861

Patent attorney

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

St. Louis, MO · 63105

314-446-7670

Lori J Lehman

Reg. 62480

Patent agent

Monsanto

St. Louis, MO · 63167

314-694-8871

Lynn A Lehnert

Reg. 54678

Patent attorney

Goldberg Segalla

St. Louis, MO · 63105

314-446-3359

Jeffrey C Leng

Reg. 68247

Patent attorney

Jefferson City, MO · 65109

573-353-5380

John A Lepore

Reg. 63340

Patent attorney

Boeing

Hazelwood, MO · 63042-2513

314-258-0732

Brock D Levin

Reg. 65040

Patent agent

Global Patent Group, LLC

Brentwood, MO · 63144

913-787-3513

Steven N Levitt

Reg. 76498

Patent attorney

Senniger Powers, LLP

Saint Louis, MO · 63102

314-345-7000

Linda L Lewis

Reg. 31212

Patent attorney

CreatiVenture Law

St. Louis, MO · 63132

314-989-0458

Chunping Li

Reg. 57755

Patent attorney

Monsanto Company

St. Louis, MO · 63167

314-694-2192

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.