Colorado

Patent attorneys in Colorado

Colorado hosts 1,050 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 Colorado. 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 Leydig, Voit & Mayer, Ltd., Eric W. Cernyar, P.C., and HDC Intellectual Property Law, LLP.

Top cities in Colorado

All practitioners in Colorado

Bryan D. A. Caylor

Reg. 65603

Patent attorney

Littleton, CO · 80120

303-794-5814

Eric W Cernyar

Reg. 45919

Patent attorney

Eric W. Cernyar, P.C.

Cripple Creek, CO · 80813

719-689-0700

Don D Cha

Reg. 40945

Patent attorney

HDC Intellectual Property Law, LLP

Lakewood, CO · 80401

303-500-3399

Ha R Cha

Reg. 76630

Patent agent

Englewood, CO · 80112

720-231-6656

Paul S Cha

Reg. 54022

Patent attorney

Lumen Technologies

Denver, CO · 80202

720-505-0935

Austin J. Chambers

Reg. 73467

Patent attorney

Law of the Rockies

Gunnison, CO · 81230

970-641-1903

Madhavi C Chander

Reg. 50326

Patent agent

miRagen Therapeutics, Inc.

Boulder, CO · 80301

720-407-4619

Bernard H Chao

Reg. 38101

Patent attorney

University of Denver Sturm

Denver, CO · 80208

303-871-6110

Gary B Chapman

Reg. 51279

Patent attorney

Leydig, Voit & Mayer, Ltd.

Boulder, CO · 80301

720-795-7976

Michael T Chatwin

Reg. 66539

Patent agent

Shepherd Law Group, P.C.

Denver, CO · 80264

720-279-6650

Akiyoshi Chen

Reg. 83159

Patent attorney

Fort Collins, CO · 80525

970-227-6601

Jian Chen

Reg. 63137

Patent agent

Colorado Springs, CO · 80921

719-203-4671

Xiaoyue Chen

Reg. 51552

Patent attorney

Lathrop & Gage

Boulder, CO · 80301

720-931-3014

Micah C. Cheng

Reg. 81979

Patent attorney

Denver, CO · 80202

612-388-7341

Eric Ching Sung Cheong

Reg. 75236

Patent attorney

Lewis Roca Rothgerber Christie LLP

Denver, CO · 80202-2995

303-628-9531

Boris D. Chernomordik

Reg. 78112

Patent agent

Leydig, Voit & Mayer, Ltd.

Boulder, CO · 80301

720-795-7980

Peter E. Chevalier

Reg. 64244

Patent attorney

Equinix, Inc.

Denver, CO · 80202

720-365-1938

Ram R Chintalapally

Reg. 51558

Patent attorney

Boulder, CO · 80303

303-516-9695

Jack J. Chmura

Reg. 83009

Patent agent

Dorsey & Whitney

Denver, CO · 80202-5549

303-629-3400

Cyrus Y Chung

Reg. 61768

Patent attorney

U.S. District Court for the District of Colorado

Denver, CO · 80294

303-335-2761

Ho-Young R Chung

Reg. 60584

Patent attorney

Denver, CO · 80203

303-295-8000

Acacia Marie Cirasunda Dettman

Reg. 901322

Limited recognition

University of Colorado Law School

Boulder, CO · 80309-0401

951-520-6725

Michael K Ciraula

Reg. 66715

Patent agent

self

Fort Collins, CO · 80526

970-204-0238

Edward V Clancy

Reg. 58479

Patent attorney

The Law Office of Edward V. Clancy

Westminster, CO · 80234

303-522-5128

Annie L Clark

Reg. 78271

Patent agent

Setter Roche Smith & Shellenberger LLP

Denver, CO · 80202

303-255-3588

Laura F. Clark

Reg. 73215

Patent agent

Lafayette, CO · 80026

720-890-4241

Robert T. Clarke· Jr.

Reg. 60630

Patent attorney

United States Patent and Trademark Office - Rocky Mountain Regional Office

Denver, CO · 80294

303-297-4757

David A Clausnitzer

Reg. 67316

Patent attorney

Arvada, CO · 80002

952-934-1277

Dan Cleveland· Jr

Reg. 36106

Patent attorney

Liberty Oilfield Services LLC

Denver, CO · 80202

303-502-5284

Grace B. Clinger

Reg. 81957

Patent agent

Denver, CO · 80204

616-334-4661

Common questions

Do I need a patent attorney based in Colorado?

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 Colorado-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 Colorado?

1,050 active USPTO-registered patent practitioners list a Colorado 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.