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, Shook, Hardy & Bacon, LLP, and Shook, Hardy & Bacon.

Top cities in Missouri

All practitioners in Missouri

Andrew B. Whitehead

Reg. 61989

Patent attorney

Armstrong Teasdale LLP

St. Louis, MO · 63105

314-259-4708

Raymond J. Whitehill· II

Reg. 84490

Patent attorney

Pontello, Bressler, Norwood, and Associates

Saint Charles, MO · 63301

636-896-4170

Zachary S Wiersma

Reg. 77808

Patent attorney

Armstrong Teasdale LLP

St. Louis, MO · 63105

314-259-4764

Tawni L Wilhelm

Reg. 47456

Patent attorney

Kansas City, MO · 64154

816-820-5553

Jeffrey B Williams

Reg. 43269

Patent agent

Shook, Hardy & Bacon, LLP

Kansas City, MO · 64108

816-474-6550

Nathan C Williams

Reg. 39073

Patent attorney

Chief Deputy Public Counsel, Missouri

Jefferson City, MO · 65102-2230

573-526-4975

Reid L. Williams

Reg. 82752

Patent attorney

Shook, Hardy & Bacon

Kansas City, MO · 64108

816-559-4012

Whitney D Williams

Reg. 68298

Patent attorney

Shook Hardy and Bacon LLP

Kansas City, MO · 64108

816-937-5114

Kaylynn R. Williamson

Reg. 82650

Patent agent

Clayton, MO · 63105

618-420-8683

Michael A Williamson

Reg. 54541

Patent attorney

Polsinelli PC

Kansas City, MO · 64112

816-753-1000

Geoffrey E Willmoth

Reg. 56709

Patent agent

Kansas City, MO · 64112

816-668-3412

Christopher D. Wilson

Reg. 61899

Patent agent

Advanced Aviation Consulting and Engineering Services, LLC

Ellisville, MO · 63011-2377

636-220-8610

Sylvia M. Wilson

Reg. 81901

Patent attorney

Thompson Coburn LLP

Saint Louis, MO · 63101

314-552-6085

Kimberly A Wingate

Reg. 43776

Patent attorney

H&R Block

Kansas, MO · 64105

816-854-3051

Anthony B Wingrove

Reg. 60317

Patent attorney

Shook, Hardy & Bacon L.L.P.

Kansas City, MO · 64108

816--47-4-6550

Catherine J Winter

Reg. 38364

Patent attorney

Armstrong Teasdale LLP

St. Louis, MO · 63105

314-342-7807

Jacob A. Winton

Reg. 84153

Patent agent

Husch Blackwell

St. Louis, MO · 63105

314-480-1500

Ian C. Wiseman

Reg. 84200

Patent attorney

Shook, Hardy & Bacon, LLP

Kansas City, MO · 64108

816-559-0302

Terry A Witthaus

Reg. 28795

Patent attorney

Washington, MO · 63090

636-239-2113

David M. Woods

Reg. 74948

Patent attorney

Hughes Hubbard & Reed, LLP

Kansas City, MO · 64108

816-709-4150

Patrick C Woolley

Reg. 39078

Patent attorney

Polsinelli, PC

Kansas City, MO · 64112

816-753-1000

Adam S Wright

Reg. 77663

Patent attorney

Lee's Summit, MO · 64081

573-248-4990

Adam R Wuller

Reg. 65671

Patent attorney

Armstrong Teasdale LLP

St. Louis, MO · 63105

314-621-5070

Ping Xia

Reg. 56473

Patent agent

Brentwood, MO · 63144

314-968-7329

John A. Yannuzzi

Reg. 60779

Patent attorney

Cortrol Process Systems, Inc.

Hazelwood, MO · 63042

314-731-2006

Martha J Yates

Reg. 47194

Patent agent

Monsanto

Saint Louis, MO · 63167

314-694-6037

Jeffrey A Young

Reg. 56476

Patent agent

Shook, Hardy & Bacon

Kansas City, MO · 64108

816-474-6550

Saul L Zackson

Reg. 52391

Patent attorney

Sandberg, Phoenix & von Gontard, P.C.

Clayton, MO · 63105

314-425-4916

Clayton R. Zak

Reg. 72156

Patent attorney

Thompson Coburn LLP

St. Louis, MO · 63101

314-552-6293

Paul E Zarek

Reg. 75190

Patent agent

POLSINELLI PC

St. Louis, MO · 63105

314-889-8000

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.