Wilmington, Delaware

Patent attorneys in Wilmington

Wilmington, Delaware is home to 241 USPTO-registered patent practitioners. Working with a local practitioner can streamline in-person meetings for invention disclosures, signing inventor declarations, and reviewing prior-art search results — but every USPTO practitioner is licensed to practice nationally, so a non-local choice is also valid. Local firms with the most USPTO-registered practitioners include The Chemours Company, McCarter & English, LLP, and E.I. du Pont de Nemours INC.

Karin Johnson Karel

Reg. 33918

Patent agent

E.I. du Pont de Nemours INC

Wilmington, DE · 19880

302-695-4641

Karen E Keller

Reg. 57487

Patent attorney

Shaw Keller LLP

Wilmington, DE · 19899

302-476-2050

Karen Kay King

Reg. 34850

Patent attorney

E. I. Du Pont de Nemours and CO

Wilmington, DE · 19898

302-892-7229

Donald R Kinsley

Reg. 53134

Patent attorney

Marion Marvel Bradley & Anderson, P.A.

Wilmington, DE · 19801

302-425-5177

George Edward Kirvan· Jr

Reg. 36187

Patent agent

Wilmington, DE · 19808

302-999-8386

Gerald Keiji Kita

Reg. 24125

Patent attorney

Wilmington, DE · 19808-4308

302-233-6721

Steven E. Kleiner

Reg. 61151

Patent attorney

Wilmington, DE · 19810

302-635-0775

Joan Taft Kluger

Reg. 38940

Patent attorney

Barnes & Thornburg LLP

Wilmington, DE · 19801-1611

302-300-3468

Charles Stuart Knothe

Reg. 29661

Patent attorney

Wilmington, DE · 19810

302-478-8800

Robert K Kobos

Reg. 54229

Patent agent

Wilmington, DE · 19810

302-475-4489

Dana Marie Kolesar

Reg. 55338

Patent attorney

The Chemours Company

Wilmington, DE · 19801

302-773-0156

Maria M Kourtakis

Reg. 41126

Patent attorney

TrustPoint.One

Wilmington, DE · 19805

302-596-6866

Thomas H. Kramer

Reg. 71042

Patent attorney

O'Kelly Ernst & Joyce, LLC

Wilmington, DE · 19801

302-426-2136

Basil S Krikelis

Reg. 41129

Patent attorney

McCarter & English, LLP

Wilmington, DE · 19801

302-984-6393

Timothy R Krogh

Reg. 40688

Patent attorney

The Chemours Company

Wilmington, DE · 19801

302-571-2697

James M Kron

Reg. 44194

Patent attorney

Potter Anderson and Corroon, LLP

Wilmington, DE · 19801

302-984-6115

Joshua E Lahijani

Reg. 80766

Patent attorney

Wilmington, DE · 19803

302-887-6198

Johnny Lam

Reg. 66279

Patent attorney

Wilmington, DE · 19804

415-799-9979

M. Curtis Lambert

Reg. 57901

Patent attorney

Drinker Biddle & Rath LLP

Wilmington, DE · 19801

302-467-4200

Thomas R Lane

Reg. 42781

Patent attorney

Skadden Arps Slate Meagher and Flom, LLP

Wilmington, DE · 19801

302-651-3186

Scott K Larsen

Reg. 38532

Patent attorney

Incyte Corporation

Wilmington, DE · 19803

302-498-7051

Douglas R Leach

Reg. 53187

Patent agent

Chemours FC LLC

Wilmington, DE · 19801

302-773-3160

Sheng-Lian O Lee

Reg. 60299

Patent agent

Wilmington, DE · 19803

302-887-9729

Brian R Lemon

Reg. 63769

Patent attorney

McCarter & English, LLP

Wilmington, DE · 19801

302-984-6374

James M Lennon

Reg. 56815

Patent attorney

Devlin Law Firm LLC

Wilmington, DE · 19806

302-449-7676

Bart Eran Lerman

Reg. 31897

Patent attorney

Kuraray America, Inc.

Wilmington, DE · 19803

847-769-6486

Jeffrey C Lew

Reg. 35935

Patent attorney

Wilmington, DE · 19810

302-475-7919

Christine M Lhulier

Reg. 54269

Patent attorney

E.I. DuPont De Nemours and Company

Wilmington, DE · 19805

302-992-5463

Tong Li

Reg. 47748

Patent agent

E. I. duPont de Nemours and Company

Wilmington, DE · 19880-0323

302-695-2550

Xu Li

Reg. 75127

Patent agent

Wilmington, DE · 19707

302-778-8470

Common questions

Do patent attorneys in Wilmington cost more than the national average?

Patent attorney fees vary primarily by experience and complexity of the invention, not by city. A typical provisional patent application in the US runs $1,500 to $5,000; a non-provisional utility filing runs $5,000 to $15,000. Hourly rates in Wilmington tend to track the broader Delaware legal market.

How many USPTO practitioners list a Wilmington office?

241 USPTO-registered patent practitioners list a Wilmington mailing address on the OEDCI roster. You can sort by firm size and contact each directly using the phone numbers shown.

Can I work with a Wilmington practitioner remotely?

Yes. All filings happen through USPTO's electronic Patent Center — no in-person presence is required. A Wilmington-based practitioner is convenient for local inventor signings and in-person meetings but not a requirement for representation.