Ohio

Patent attorneys in Ohio

Ohio hosts 1,500 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 Ohio. 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 Dinsmore & Shohl, LLP, Driggs, Hogg, Daugherty & Del Zoppp Co., L.P.A., and Wood Herron and Evans LLP.

Top cities in Ohio

Cleveland322 Cincinnati277 Columbus99 Akron84 Dayton58 Toledo43 Dublin26 Canton19 Beachwood19 Westlake17 Mentor17 Mason15 Loveland12 North Olmsted12 Medina12 Perrysburg11 Tiffin11 Hinckley10 Willoughby10 Wickliffe10

All practitioners in Ohio

James Andre Lucas

Reg. 21081

Patent attorney

Driggs, Hogg, Daugherty & Del Zoppp Co., L.P.A.

Willoughby Hills, OH · 44094

440-391-5100

Clement H Luken

Reg. 32742

Patent attorney

Wood Herron and Evans LLP

Cincinnati, OH · 45202

513-241-2324

Susan M Luna

Reg. 38769

Patent agent

Dinsmore & Shohl, LLP

Dayton, OH · 45402

937-449-6429

Thomas M Lundin

Reg. 48979

Patent attorney

Philips Intellectual Property and Standards

Cleveland, OH · 44143

440-869-4501

Gregory John Lunn

Reg. 29945

Patent attorney

Wood Herron and Evans

Cincinnati, OH · 45202

513-241-2324

Jennifer H. Lunn

Reg. 75765

Patent attorney

Dinsmore & Shohl, LLP

Dayton, OH · 45402

937-449-6459

Charles Bahlmann Lyon

Reg. 25739

Patent attorney

Calfee Halter and Griswold LLP

Cleveland, OH · 44114

216-622-8510

Philip S Lyren

Reg. 40709

Patent attorney

Philip Lyren LLC

Wadsworth, OH · 44281

234-352-0232

Elizebeth Marie Maag

Reg. 63736

Patent attorney

CrossChx, Inc.

Columbus, OH · 43215

800-501-3161

Robert E Maag· Jr

Reg. 53250

Patent attorney

Walker & Jocke

Medina, OH · 44256

330-721-0000

Richard Scott MacMillan

Reg. 30085

Patent attorney

MacMillan Sobanski and Todd LLC

Toledo, OH · 43604

419-255-5900

Ashvani Kumar Madan

Reg. 66724

Patent agent

IndepLiving

Mason, OH · 45040

513-403-9771

Karl M Maersch

Reg. 51981

Patent attorney

Jones Day Reavis and Pogue

Cleveland, OH · 44114

216-586-3939

Thomas Robert Maier

Reg. 79422

Patent attorney

Broadview Heights, OH · 44147

330-603-5116

David M Maiorana

Reg. 41449

Patent attorney

Jones Day

Cleveland, OH · 44114

216-586-7499

Salvatore C Malguarnera

Reg. 53260

Patent agent

SEA INC

Columbus, OH · 43085

614-888-4160

David A Mancino

Reg. 39289

Patent attorney

Baker Hostetler LLP

Cincinnati, OH · 45202

513-929-3495

Charles Q Maney

Reg. 58256

Patent attorney

NCR Corporation

Dayton, OH · 45479

937-445-3849

Alfred John Mangels

Reg. 22605

Patent attorney

Cincinnati, OH · 45241-2433

513-469-0470

Timothy E Manning

Reg. 48964

Patent attorney

Philips Intellectual Property & Standards

Cleveland, OH · 44143

440-869-4400

Keith J Marcinowski

Reg. 56110

Patent agent

The J.M. Smucker Company

Orrville, OH · 44667

330-684-8260

David M. Marcus

Reg. 63203

Patent attorney

McNees Wallace & Nurick LLC

Columbus, OH · 43215

614-719-2856

Eric Marich

Reg. 32265

Patent attorney

New Franklin, OH · 44319-4670

330-571-9888

James W Marley

Reg. 44220

Patent attorney

Toledo, OH · 43613

419-474-4980

Christopher D Marriott

Reg. 71662

Patent attorney

Schaffer, Schaub & Marriott, LTD

Toledo, OH · 43604

419-243-1294

Beverly A. Marsh

Reg. 62302

Patent attorney

Standley Law Group LLP

Dublin, OH · 43017

614-792-5555

Dwight A Marshall

Reg. 25896

Patent attorney

Columbus, OH · 43235

614-888-6533

Meredith C. Marshall

Reg. 83870

Patent agent

Standley Law Group

Dublin, OH · 43017

614-792-5555

David J Martin

Reg. 71107

Patent attorney

Baker Hostetler, LLP

Columbus, OH · 43215

614-462-4738

Kyle J. Martin

Reg. 81303

Patent attorney

Rooney IP, LLC

Cincinnati, OH · 45236

513-274-9664

Common questions

Do I need a patent attorney based in Ohio?

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 Ohio-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 Ohio?

1,500 active USPTO-registered patent practitioners list a Ohio 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.