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 Cantor Colburn, Pratt & Whitney, and Withers Bergman LLP.

Top cities in Connecticut

All practitioners in Connecticut

Alexander M. Porte

Reg. 79703

Patent agent

Withers Bergman LLP

Greenwich, CT · 06870

203-974-0390

Sana A Pratt

Reg. 39441

Patent agent

Cantor Colburn

Hartford, CT · 06103

860-286-2929

Troy Shannon Prince

Reg. 48746

Patent attorney

Pratt & Whitney

East Hartford, CT · 06108

860-565-4369

Jason D Radachy

Reg. 64360

Patent attorney

Moyles IP

Shelton, CT · 06484

203-428-4420

Philip H. Ratliff

Reg. 70999

Patent agent

Cheshire, CT · 06410

203-213-4014

Charles Arthur Rattner

Reg. 40136

Patent attorney

Stamford, CT · 06905-8789

203-325-8240

Owen J. Raymond

Reg. 83212

Patent agent

Farber LLC

Shelton, CT · 06484

203-286-5266

Mary Elizabeth Raynor Jimenez

Reg. 37219

Patent attorney

Pratt & Whitney

East Hartford, CT · 06118

860-557-2260

Jose M. Recio

Reg. 76798

Patent attorney

Collins Aerospace

Farmington, CT · 20001

860-205-6230

Louis Herman Reens

Reg. 22588

Patent attorney

St Onge Steward Johnston and Reens LLC

Stamford, CT · 06905

203-324-6155

William R Reid

Reg. 47894

Patent attorney

Dilworth IP, LLC

Trumbull, CT · 06611

203-220-8496

Leah M Reimer

Reg. 39341

Patent attorney

Cantor Colburn LLP

Hartford, CT · 06103-3207

860-286-2929

Kevin L Reiner

Reg. 43040

Patent attorney

McCarter & English, LLP

Hartford, CT · 06103

860-275-6756

Steven V Reinhardt

Reg. 35991

Patent attorney

Southbury, CT · 06488

203-264-2148

Howard Scott Reiter

Reg. 20394

Patent attorney

New Milford, CT · 06776

860-355-0869

Ali Reza Rejaei

Reg. 55570

Patent agent

Wallingford, CT · 06492

203-697-9258

Stephen Eli Revis

Reg. 26609

Patent attorney

Avon, CT · 06001

860-284-0597

Michael A Ricci

Reg. 39006

Patent attorney

Michael Ricci, Esq.

Greenwich, CT · 06830

203-485-8381

Andrew Michael Riddles

Reg. 31657

Patent attorney

Day Pitney LLP

Stamford, CT · 06901-2047

203-977-7575

David F Ries

Reg. 43046

Patent attorney

dfresq

Riverside, CT · 06878

203-344-9363

Robert L Rispoli

Reg. 43884

Patent attorney

RLR LAW LLC

Wolcott, CT · 06716

860-205-9297

L. James Ristas

Reg. 28663

Patent agent

Alix, Yale & Ristas, LLP

Hartford, CT · 06103

860-527-9211

William E. Roberts

Reg. 79314

Patent agent

Dinsmore & Shohl LLP

Groton, CT · 06340

248-918-4887

Albert L Robitaille

Reg. 36906

Patent attorney

Manchester, CT · 06042

860-643-7204

Jason M Rockman

Reg. 63473

Patent attorney

Moyles IP, LLC

Shelton, CT · 06484

201-428-4420

Bryan D Rockwell

Reg. 36656

Patent attorney

Otis Elevator

Farmington, CT · 06034

860-284-3952

Robert Martin Rodrick

Reg. 27086

Patent attorney

Spine Wave Inc.

Shelton, CT · 06484

908-223-7029

Edgar G Rodriguez

Reg. 63604

Patent attorney

Edgewell Personal Care

Shelton, CT · 06851

203-882-2412

Natasha Rodriguez

Reg. 75920

Patent attorney

Whitmyer lP Group

Stamford, CT · 06901

203-703-0842

Joseph F. Romagnano

Reg. 76034

Patent attorney

Cantor Colburn

Hartford, CT · 06103

508-868-7832

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.