Connecticut

Patent attorneys in Connecticut

Connecticut hosts 744 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 Connecticut. 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 General Electric Company, Cantor Colburn LLP, and Unilever.

Top cities in Connecticut

All practitioners in Connecticut

Charles Dallett Hoopes

Reg. 18846

Patent attorney

Litchfield, CT · 06759

860-567-5998

Carl Blaine Horton

Reg. 34622

Patent attorney

General Electric Company

Fairfield, CT · 06828

203-373-2470

Jared B Howenstine

Reg. 63263

Patent attorney

Cantor Colburn LLP

Hartford, CT · 06103-3207

860-286-2929

Erbing Hua

Reg. 65611

Patent agent

Waterford, CT · 06385

860-437-8757

Stephanie Huang

Reg. 78387

Patent attorney

Unilever

Trumbull, CT · 06611

203-895-8773

Harold Huberfeld

Reg. 26665

Patent attorney

Ridgefield, CT · 06877

203-790-8913

John B. Hudak

Reg. 77787

Patent attorney

Law Office of John B. Hudak, PLLC

Milford, CT · 06461

203-533-2721

Thomas C Hughes

Reg. 42674

Patent attorney

Thomas Hughes, Esq.

Shelton, CT · 06484

203-286-5361

John M. Humphrey

Reg. 84650

Patent agent

Patent Pharm, LLC

Mystic, CT · 06355

860-389-5844

Istrate Ionescu

Reg. 33185

Patent attorney

Stratford, CT · 06615

Janice V. Jabido

Reg. 75124

Patent attorney

RTX Corporation

FARMINGTON, CT · 06032

959-225-0810

David S Jacobson

Reg. 39235

Patent attorney

Gordon & Jacobson PC

Stamford, CT · 06902

203-323-1800

Willie Jacques

Reg. 53062

Patent agent

Emanus LLC

Hartford, CT · 06103

860-214-6043

Michael B Jaffe

Reg. 51840

Patent agent

Cardiorespiratory Cousulting, LLC

Cheshire, CT · 06410

Aaron H. Jagoda

Reg. 72972

Patent attorney

Stamford, CT · 06907

914-815-2758

Dennis J Jakiela

Reg. 68539

Patent agent

Cantor Colburn, LLP

Hartford, CT · 06103-3207

860-286-2929

Karen A Jalbert

Reg. 39237

Patent agent

Tolland, CT · 06084

860-817-3761

Dennis H. Jaskoviak· Jr.

Reg. 59939

Patent attorney

Mayborn USA inc.

Stamford, CT · 06901

713-205-5837

Kirsten A. Jensen

Reg. 70438

Patent attorney

Hamden, CT · 06517

203-530-1992

Kemiao Jia

Reg. 74110

Patent agent

Tolland, CT · 06084

781-937-1391

Timothy A Johnson

Reg. 51234

Patent attorney

Getz Balich LLC

Farmington, CT · 06032

860-470-4703

Joshua L Jones

Reg. 57044

Patent attorney

Troutman Pepper Locke LLP

Stamford, CT · 06901

203-353-6870

Shelley A Jones

Reg. 53081

Patent attorney

BOEHRINGER INGELHEIM USA CORP.

Ridgefield, CT · 06877

203-205-7459

William Warren Jones

Reg. 24607

Patent attorney

Madison, CT · 06443

203-245-2418

Juan Juan

Reg. 60564

Patent attorney

Alix, Yale & Ristas, LLP

Hartford, CT · 06103

860-527-9211

Kenneth J Kalafus

Reg. 66175

Patent attorney

Boehringer Ingelheim USA Corporation

Ridgefield, CT · 06877

203-798-9988

Joseph Jacob Kaliko

Reg. 27995

Patent attorney

Kaliko Law Offices

Greenwich, CT · 06830

203-629-5555

Jessica F Kallipolites

Reg. 57726

Patent attorney

CBEC

Hartford, CT · 06106

860-402-1893

Emily J. Kasperowski

Reg. 63034

Patent attorney

McCormick, Paulding & Huber, LLP

Hartford, CT · 06103

860-549-5290

Robert J Kasten

Reg. 67055

Patent agent

Murtha Cullina LLP

New Haven, CT · 06510

203-772-7729

Common questions

Do I need a patent attorney based in Connecticut?

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 Connecticut-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 Connecticut?

744 active USPTO-registered patent practitioners list a Connecticut 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.