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, Law Offices of Heath Martin, LLC, and Armstrong teasdale LLP.

Top cities in Missouri

All practitioners in Missouri

Heath D. Martin

Reg. 75954

Patent attorney

Law Offices of Heath Martin, LLC

Kansas City, MO · 64109

913-526-3041

Alexandra Martinez

Reg. 77654

Patent attorney

Armstrong teasdale LLP

Saint Louis, MO · 63105

314-259-4747

Donna D. Mashburn Chapman

Reg. 67350

Patent attorney

Lee's Summit, MO · 64064

816-525-2233

Zachary M. Mass

Reg. 82721

Patent attorney

Shook, Hardy & Bacon LLP

Kansas City, MO · 64108

816-977-1904

Robert Matijasec

Reg. 79424

Patent attorney

QED IP

Saint Louis, MO · 63124-2040

314-728-9951

Stephen R Matthews

Reg. 34384

Patent attorney

Matthews Edwards LLC

Earth City, MO · 63045

314-241-4427

Jasen S Matyas

Reg. 56979

Patent attorney

Rogers, Ehrhardt & Weber LLC

Columbia, MO · 65201

573-442-0131

Ashley M Mayer

Reg. 70018

Patent attorney

Armstrong Teasdale LLP

Clayton, MO · 63105

314-621-5070

Parris M. Mayhood

Reg. 82284

Patent attorney

Shook, Hardy & Bacon

Kansas City, MO · 64108

816-646-0985

Derek C Mays

Reg. 48116

Patent attorney

Maritz

Fenton, MO · 63099

636-827-2170

Timothy B McBride

Reg. 47781

Patent attorney

Mastercard International Incorporated

O'Fallon, MO · 63368

636-459-5428

Joshua M McCaig

Reg. 62844

Patent attorney

Polsinelli Shughart, P.C.

Kansas City, MO · 64105

816-395-0651

Michael G McCay

Reg. 64862

Patent agent

Armstrong Teasdale LLP

St. Louis, MO · 63105-1847

314-621-5070 EXT.7972

Bruce C McClelland

Reg. 43786

Patent attorney

Legacy Settlements Group

Kansas City, MO · 64112

816-931-5577

Charles Carroll McCloskey· IV

Reg. 46911

Patent attorney

Charles C. McCloskey, LLC

Town & Country, MO · 63017

636-527-9962

Calan T McConkey

Reg. 63466

Patent attorney

Law Office of Calan T. McConkey LLC

Excelsior Springs, MO · 64024

816-476-6400

Richard W. McCormick

Reg. 81711

Patent attorney

Kansas City, MO · 64105

816-560-3478

Elena S. K. McFarland

Reg. 59320

Patent attorney

Shook, Hardy & Bacon L.L.P.

Kansas City, MO · 64108-2613

816-559-2436

Maxwell C. McGraw

Reg. 76554

Patent attorney

Shook, Hardy and Bacon LLP

Kansas City, MO · 64108

913-912-0603

Brian M McInnis

Reg. 62583

Patent attorney

St. Louis, MO · 63129

314-846-0770

Julie V. Meglan

Reg. 83563

Patent attorney

Stinson

St. Louis, MO · 63105

314-863-0800

Riddhiman R R Mehra

Reg. 84615

Patent agent

St Louis, MO · 63112

805-259-0939

Samir R Mehta

Reg. 72672

Patent attorney

Stinson Leonard Street, LLP

St. Louis, MO · 63105

314-863-0800

Patricia A Meier

Reg. 43798

Patent attorney

The Meier Law Office

Four Seasons, MO · 65049

573-365-2029

Ellen Roosman Mell

Reg. 76475

Patent attorney

Intellect Law Firm, LLC

Farmington, MO · 63640

314-614-2941

Camilla B C Meloch

Reg. 50240

Patent agent

Patent Svcs

Saint Louis, MO · 63130

314-733-0742

Bryan E. Meyer

Reg. 66769

Patent attorney

Shook, Hardy & Bacon, LLP

Kansas City, MO · 64108

816-474-6550

Greg W Meyer

Reg. 59915

Patent attorney

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

St. Louis, MO · 63105

314-726-7500

Martha Ann Michaels

Reg. 20453

Patent attorney

Law Office of Martha A. Michaels

O'Fallon, MO · 63366

636-379-5809

Caleb R. Mickey

Reg. 80325

Patent attorney

Shook Hardy & Bacon LLP

Kansas City, MO · 64108

816-768-3909

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.