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 L.L.P., Kutak Rock LLP, and Washington University in St. Louis School of Law.

Top cities in Missouri

All practitioners in Missouri

Cormac M. Smith

Reg. 65180

Patent attorney

Washington University in St. Louis School of Law

St. Louis, MO · 63130

314-935-9269

Jeanne M Smith

Reg. 47097

Patent attorney

Jeanne M. Smith

Kirkwood, MO · 63122

973-945-0406

Michael L Smith

Reg. 35685

Patent attorney

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

St Louis, MO · 63105

314-446-7646

Michelle J Smith

Reg. 41319

Patent attorney

Law Offices of Michelle Smith

St. Peters, MO · 63376

636-244-6015

Mollie M Smith

Reg. 65739

Patent agent

Shook, Hardy and Bacon, L.L.P.

Kansas City, MO · 64108

816-474-6550

Scott A Smith

Reg. 46067

Patent attorney

Katalyst Surgical, LLC

Chesterfield, MO · 63005

636-536-5950

Benjamin J. Sodey

Reg. 62258

Patent attorney

POLSINELLI PC

St. Louis, MO · 63105

314-889-7017

Jonathan P Soifer

Reg. 34932

Patent attorney

Sandberg Phoenix & von Gontard P.C.

St Louis, MO · 63131

314-725-9100

Andrew M Solomon

Reg. 32175

Patent attorney

Polsinelli PC

St Louis, MO · 63105

314-622-6132

Hansoo Song

Reg. 83049

Patent agent

Saint Louis, MO · 63108

650-302-3828

Tori E. Sorensen

Reg. 80192

Patent agent

Armstrong Teasdale, LLP

Kansas City, MO · 64108

712-249-6590

Evan R. Sotiriou

Reg. 46247

Patent attorney

Tucker Ellis LLP

St. Louis, MO · 63102

314-571-4985

Omowunmi B Soyinka

Reg. 79285

Patent attorney

Shook Hardy & Bacon

Kansas City, MO · 64108

816-937-5908

Michael J Spenner

Reg. 70275

Patent attorney

St. Louis, MO · 63017

314-406-8450

Nicholas P. Stadnyk

Reg. 71321

Patent attorney

Shook, Hardy & Bacon L.L.P.

Kansas City, MO · 64108

816-559-2610

Kevin C Staed

Reg. 77170

Patent attorney

Carmody MacDonald P.C.

St. Louis, MO · 63105

314-854-8723

Mark Edward Stallion

Reg. 46132

Patent attorney

Greensfelder, Hemker & Gale, P.C.

St. Louis, MO · 63102

314-345-4735

John W. Stankiewicz

Reg. 60169

Patent attorney

The Boeing Company

Berkeley, MO · 63134

314-562-8417

Bryan P Stanley

Reg. 44352

Patent attorney

Kutak Rock LLP

Kansas City, MO · 64108

816-960-0090

Howard C Stanley

Reg. 25043

Patent attorney

Chesterfield, MO · 63017

314-434-6238

Gale W Starkey

Reg. 66972

Patent agent

Bayer

St. Louis, MO · 63017

314-602-9744

Eric W Steen

Reg. 68286

Patent attorney

Steen Legal and Business Solutions LLC

Kansas City, MO · 64113

816-419-7736

Michelle M Stempien

Reg. 41327

Patent agent

Monsanto Company

Chesterfield, MO · 63017

636-737-1825

Jonathan G Sterrett

Reg. 80534

Patent agent

Spencer Fane LLP

Kansas City, MO · 64106

816-474-8100

James M Stipek

Reg. 39388

Patent attorney

Polsinelli PC

Kansas City, MO · 64112

816-753-1000

Scott B Strohm

Reg. 42172

Patent attorney

Shook Hardy & Bacon, LLP

Kansas City, MO · 64108

816-474-6550

Scott J. Strohm

Reg. 82326

Patent attorney

Kutak Rock LLP

Kansas City, MO · 64108

816-502-4620

Ashley N. Sturgeon

Reg. 64819

Patent attorney

Shook, Hardy & Bacon, L.L.P.

Kansas City, MO · 64108

816-474-6550

Patrick J. Sullivan

Reg. 76483

Patent attorney

Shook, Hardy & Bacon L.L.P.

Kansas City, MO · 64108

816-559-2891

Preeti H Sundaram

Reg. 59544

Patent attorney

Cardinal Law Group

Chesterfield, MO · 63017-7381

636-227-0390

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.