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 The Procter & Gamble Company, Nordson Corporation, and Lech Law, LLC.

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

Dale Steven Lazar

Reg. 28872

Patent attorney

Cuyahoga Falls, OH · 44223

703-855-3208

Jon Bradford Leaheey

Reg. 27107

Patent attorney

Nordson Corporation

Westlake, OH · 44145

440-414-5387

George H Leal

Reg. 56813

Patent attorney

The Procter & Gamble Company

Cincinnati, OH · 45202

513-983-0841

Robert Raymond Lech

Reg. 37169

Patent attorney

Lech Law, LLC

Dublin, OH · 43016

614-530-1284

Faustina Y. Lee

Reg. 65692

Patent attorney

Tucker Ellis LLP

Cleveland, OH · 44113-7213

216-592-5000

Herbert C. Lee

Reg. 60340

Patent agent

Columbus, OH · 43202

614-638-8471

Jennifer J. Lee

Reg. 67937

Patent agent

Uniontown, OH · 41685

330-620-7821

Jihyun Lee

Reg. 83303

Patent agent

Columbus, OH · 43201

614-620-3743

Thomas E Lees

Reg. 46867

Patent attorney

Dayton, OH · 45458

937-610-9888

Kevin L Leffel

Reg. 37379

Patent attorney

Toledo, OH · 43615

812-679-7234

Mark J. Leisring

Reg. 78026

Patent agent

Dinsmore

Cincinnati, OH · 45202

513-977-8200

Adelaide Kern Leitzel

Reg. 51341

Patent agent

Liberty Twp, OH · 45011

513-260-4656

John M Lenczyk

Reg. 54261

Patent attorney

Huron, OH · 44839

419-938-4598

Michael J Leo

Reg. 70304

Patent agent

Lakewood, OH · 44107

330-321-3275

Robert Michael Leonardi

Reg. 27815

Patent attorney

MacMillian, Sobanski & Todd, LLP

Toledo, OH · 43605

419-255-5900

Lindsay F. Leone

Reg. 79063

Patent agent

Broadview Heights, OH · 44147

440-522-6032

Robert G Lev

Reg. 30280

Patent attorney

Lev Intellectual Property Consulting

Youngstown, OH · 44505

330-759-1423

John G. Levendis

Reg. 83064

Patent agent

Campbell, OH · 44405

330-787-1189

DeMarcus E Levy

Reg. 76980

Patent attorney

Walter Haverfield LLP

Cleveland, OH · 44114

216-928-2945

Mark Philip Levy

Reg. 27922

Patent attorney

Thompson Hine LLP

Dayton, OH · 45342-4934

937-443-6949

Leonard L Lewis

Reg. 31176

Patent attorney

Calfee Halter and Griswold LLP

Cleveland, OH · 44114

216-622-8683

Leonard W Lewis

Reg. 30769

Patent attorney

The Procter & Gamble Company

Cincinnati, OH · 45202

513-983-7430

Nathan T Lewis

Reg. 56218

Patent attorney

Eschweiler & Potashnik, LLC.

Akron, OH · 44308

216-502-0600

Trevor B. Lewis

Reg. 79695

Patent agent

McDonald Hopkins LLC

Cleveland, OH · 44114

216-348-5849

Dinah Halpern Lewitan

Reg. 31977

Patent attorney

Curatold Sidoti Co., LPA

Cleveland, OH · 44145

440-808-0011

Haichang Li

Reg. 68248

Patent agent

Upper Arlington, OH · 43221

732--74-4-4384

Yan Li

Reg. 69870

Patent agent

Mason, OH · 45040

630-885-7827

Christine Y. Liao

Reg. 66765

Patent attorney

Maineville, OH · 45039

214-505-8170

Neriah-Shae L Licata

Reg. 82831

Patent agent

Hahn Loeser & Parks

Cleveland, OH · 44114

216-274-2252

Bradley T. Ligibel

Reg. 61351

Patent attorney

Stevens & Showalter L.L.P.

Dayton, OH · 45459

937-438-6848

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.