Ohio

Patent attorneys in Ohio

Ohio hosts 1,498 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, Dugan Law Office, LLC, and MacMillan, Sobanski and Todd, LLC.

Top cities in Ohio

Cleveland313 Cincinnati280 Columbus101 Akron83 Dayton58 Toledo44 Dublin26 Beachwood19 Canton19 Westlake17 Mentor16 Mason15 North Olmsted12 Medina12 Loveland12 Tiffin11 Perrysburg11 Willoughby10 Hinckley10 Wickliffe10

All practitioners in Ohio

Matthew P Dugan

Reg. 44663

Patent attorney

Dugan Law Office, LLC

Rocky River, OH · 44116

216-365-8900

James A Duggan

Reg. 61001

Patent attorney

MacMillan, Sobanski and Todd, LLC

Toledo, OH · 43604

419-255-5900

Ravit Dung

Reg. 80790

Patent agent

Path Robotics, Inc.

Columbus, OH · 43215

614-816-1991

Tyler S Dunham

Reg. 60364

Patent attorney

RV Mobile Power, LLC

Columbus, OH · 43212

614-657-6847

Thoburn T Dunlap

Reg. 31246

Patent agent

Saint-Gobain NorPro

Stow, OH · 44224

330-677-7236

Francis L Dunn· Jr

Reg. 57972

Patent attorney

Turocy and Watson, LLP

Cleveland, OH · 44114

216-696-8730

Kevin M Dunn

Reg. 52842

Patent attorney

The Lincoln Electric Company

Cleveland, OH · 44117

216-383-2041

Chad P Durastanti

Reg. 66884

Patent agent

Medina, OH · 44256

330-289-8580

David Patrick Dureska

Reg. 34152

Patent attorney

Dureska & Moore, LLC

Canton, OH · 44718

234-209-9174

Philippe L Durette

Reg. 35125

Patent attorney

Chagrin Falls, OH · 44022

440-893-9818

William C Dusseau

Reg. 64842

Patent attorney

Ward Law Office

Tiffin, OH · 44883

567-208-9073

Dean L. DuVal

Reg. 70218

Patent agent

Lebanon, OH · 45036

513-435-2175

Roger S Dybvig

Reg. 19319

Patent attorney

Dybvig and Dybvig

Dayton, OH · 45402

937-461-1142

Richard D. Earich

Reg. 83462

Patent attorney

Jones Day

Cleveland, OH · 44114

216-589-7220

Jocelyn E. Earle

Reg. 79357

Patent agent

Cleveland, OH · 44113

330-715-1375

Robert H Earp· III

Reg. 41004

Patent attorney

NASA Glenn Research Center

Cleveland, OH · 44135

216-433-3663

Inger H Eckert

Reg. 38017

Patent attorney

Current Lighting Solutions, LLC

East Cleveland, OH · 44112

857-348-6012

W Charles Ehlers

Reg. 40600

Patent attorney

Hasse & Nesbitt, LLC

Seven Mile, OH · 45062

513-726-5678

Mark S. Einsiedel

Reg. 76726

Patent attorney

Baker & Hostetler LLP

Columbus, OH · 43215-4138

614-462-4709

James R Eley

Reg. 36790

Patent attorney

The Eley Law Firm

Worthington, OH · 43085-0388

614-825-3539

Brian K Elias

Reg. 41732

Patent attorney

Lexis - Nexis

Miamisburg, OH · 45342

973-865-6800 X 54389

Steven Jeffrey Elleman

Reg. 41733

Patent attorney

Thompson Hine LLP

Dayton, OH · 45342-4934

937-443-6600

Christopher W Elswick

Reg. 56673

Patent attorney

Dinsmore & Shohl LLP

Cincinnati, OH · 45202

513-977-8224

Gregg W Emch

Reg. 38868

Patent attorney

MacMillan, Sobanski & Todd, LLC

Toledo, OH · 43604

419-255-5900

Matthew A. Emch

Reg. 76119

Patent attorney

Dinsmore & Shohl LLP

Cincinnati, OH · 45202

419-461-3246

Steven M Emerick

Reg. 48712

Patent attorney

Lima Sheet Metal

Lima, OH · 45804

419-229-1161

Roger Dale Emerson

Reg. 33169

Patent attorney

Emerson, Thomson & Bennett, LLC

Akron, OH · 44313

330-434-9999

Stacy L Emhoff

Reg. 62824

Patent attorney

Waller & Jocke LPA

Medina, OH · 44256

330-721-0000

Mark Ryan Engle

Reg. 58927

Patent attorney

Abbott Laboratories

Columbus, OH · 43219

614-624-7080

Emerson K. Engstrom

Reg. 80179

Patent attorney

Dinsmore + Shohl LLP

Dayton, OH · 45402

937-586-2623

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?

1,498 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.