Delaware

Patent attorneys in Delaware

Delaware hosts 324 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 Delaware. 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 E. I. du Pont de Nemours and Company, IFF, and Incyte Corporation.

Top cities in Delaware

All practitioners in Delaware

Susanne H Goodson

Reg. 58450

Patent attorney

Incyte Corporation

Wilmington, DE · 19803

302-274-4878

Thomas W Gorman

Reg. 31959

Patent attorney

Self employed

Wilmington, DE · 19803

302-388-1264

Joy Goswami

Reg. 70641

Patent agent

University of Delaware

Newark, DE · 19711

302-831-3547

John E Griffiths· Jr

Reg. 32647

Patent attorney

E. I. du Pont de Nemours and Company

Wilmington, DE · 19805

302-999-4200

David M Gryte

Reg. 41809

Patent attorney

IFF

Wilmington, DE · 19803

302-357-4046

Charles W Haas

Reg. 35173

Patent agent

Wilmington, DE · 19802

302-528-9547

Taylor Maryko Haga

Reg. 78117

Patent attorney

Morris, Nichols, Arsht & Tunnell

Wilmington, DE · 19801

302-333-5931

Warren M Haines· II

Reg. 40632

Patent attorney

E I Du Pont de Nemours and Co

Wilmington, DE · 19805

302-999-4321

William Thomas Hall

Reg. 69523

Patent agent

Hockessin, DE · 19707

302-559-6188

Damian C. Hamme

Reg. 71729

Patent agent

Interdigital Holdings, Inc.

Wilmington, DE · 19809

302-281-3794

Michael G Harms

Reg. 51780

Patent attorney

TE Connectivity

Wilmington, DE · 19308

302-633-2766

Sean P Hayes

Reg. 54159

Patent attorney

TA Instruments- Waters LLC

New Castle, DE · 19720

302-427-1054

Leonard R Hecker

Reg. 31167

Patent agent

Georgetown, DE · 19947

302-934-8578

Nicholas P Heesters· Jr

Reg. 64151

Patent attorney

Hockessin, DE · 19707

302-234-6957

David Edward Heiser

Reg. 31366

Patent attorney

Smyrna, DE · 19977

443-243-5472

John Scott Hendrickson

Reg. 30847

Patent attorney

The Chemours Company

Wilmington, DE · 19801

302-773-3200

Kimberly R Hild

Reg. 39224

Patent attorney

E. I. du Pont de Nemours and Company

Wilmington, DE · 19805

302-999-4174

Craig L Hillemann

Reg. 41072

Patent agent

Wilmington, DE · 19803-3310

302-479-0432

Cortlan S. Hitch

Reg. 81409

Patent attorney

Morris James LLP

Wilmington, DE · 19801

302-888-6800

John W Hogan· Jr

Reg. 32703

Patent attorney

Rehoboth Beach, DE · 19971

197-333-62531

Liza Duncan Hohenschutz

Reg. 33712

Patent attorney

Novak Druce Connolly Bove + Quigg LLP

Wilmington, DE · 19899

302-658-9141

Roger MacDonald Holcomb

Reg. 48246

Patent attorney

Wilmington, DE · 19803

302-479-0546

Thomas Edward Holsten

Reg. 46098

Patent attorney

IFF

Wilmington, DE · 19803

302-999-2697

George H Hopkins

Reg. 17368

Patent attorney

Wilmington, DE · 19803-1914

302-985-1151

Edward Leigh Hunt

Reg. 24203

Patent attorney

Edward Leigh Hunt, Attorney at Law

Wilmington, DE · 19803

302-656-4189

Rudolf Edward Hutz

Reg. 22397

Patent attorney

Reed Smith, LLP

Wilmington, DE · 19801

302-778-7500

Patrick T Igoe

Reg. 55292

Patent attorney

InterDigital Holdings, Inc.

Wilmington, DE · 19809

302-281-3672

Martha Statton Imbalzano

Reg. 31625

Patent agent

E I Dupont De Nemours and Company

Wilmington, DE · 19805

302-999-2429

John M Jacobs

Reg. 43688

Patent attorney

Aligned Health Law, LLC

REHOBOTH BCH, DE · 19971

484-356-5816

Lowell D Jacobson

Reg. 65534

Patent attorney

Devlin Law Firm

Wilmington, DE · 19806

302-486-3394

Common questions

Do I need a patent attorney based in Delaware?

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 Delaware-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 Delaware?

324 active USPTO-registered patent practitioners list a Delaware 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.