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 Advanced Energy Industries, Holland & Hart LLP, and Holzer IP Law, PC.

Top cities in Colorado

All practitioners in Colorado

Thomas A Dougherty

Reg. 51214

Patent attorney

Advanced Energy Industries

Denver, CO · 80202

720-309-6952

Michael L Drapkin

Reg. 55127

Patent attorney

Holland & Hart LLP

Denver, CO · 80201

303-473-2700

Eric R Drennan

Reg. 59099

Patent attorney

Holzer IP Law, PC

Denver, CO · 80202

720-204-5666

Glen R Drysdale

Reg. 56342

Patent attorney

U.S. Department of Energy

Golden, CO · 80401

720-356-1321

Daniel M. Dubuisson

Reg. 71970

Patent agent

Broomfield, CO · 80021

303-349-4114

Ryan L. Duebner

Reg. 73595

Patent attorney

Faegre Baker Daniels

Denver, CO · 80203

303-607-3611

Kevin J Duffy

Reg. 71452

Patent attorney

Dorsey & Whitney LLP

Denver, CO · 80202

303-352-1166

Catherine Asleson Dundon

Reg. 76950

Patent agent

NordYeast Inc.

Englewood, CO · 80111

303-885-6440

Paul N Dunlap

Reg. 52840

Patent attorney

Trendak IP Law LLC

Aurora, CO · 80016

720-648-5641

G. Harvey Dunn· III

Reg. 31102

Patent attorney

Woodward, Inc.

Fort Collins, CO · 80525

970-498-3136

Matthew R Dunn

Reg. 80598

Patent agent

Louisville, CO · 80027

480-888-6333

Dennis J Dupray

Reg. 46299

Patent agent

StrategemIP Ltd.

Golden, CO · 80401

303-895-7538

Eve P. Durand

Reg. 81316

Patent attorney

Boulder, CO · 80303

515-633-7118

Gregory P Durbin

Reg. 42503

Patent attorney

Polsinelli Shughart PC

Denver, CO · 80202

720-931-8133

Timothy D. Dwyer

Reg. 81232

Patent agent

Denver, CO · 80202

941-586-4408

Jack E Ebel

Reg. 28148

Patent attorney

Law Office of Jack E. Ebel

Steamboat Springs, CO · 80487

303-748-2850

Brooke H. Eckert

Reg. 79270

Patent attorney

Koenig, Oelsner, Taylor, Schoenfeld & Gaddis PC

Denver, CO · 80202

720-477-7154

Christopher M. Edgeworth

Reg. 60193

Patent attorney

Rico, CO · 81332

970-844-7303

Patrick E. Ekel

Reg. 80480

Patent agent

Broomfield, CO · 80021

720-689-8500

Nicole G. Ela

Reg. 84664

Patent attorney

WilmerHale

Denver, CO · 80202

720-298-6018

Brian J Elliott

Reg. 70630

Patent agent

TDA Research, Inc.

Golden, CO · 80403

303-940-2341

Taryn A Elliott

Reg. 66984

Patent attorney

Polsinelli Shughart P.C.

Denver, CO · 80202

303-583-8243

Bryan D Ellis

Reg. 82103

Patent agent

Wilson Sonsini Goodrich & Rosati

Boulder, CO · 80302-5148

303-256-5900

Gregory C Ellis

Reg. 56186

Patent attorney

Boulder, CO · 80302

415-555-1234

Matthew R Ellsworth

Reg. 56345

Patent attorney

Sheridan Ross P.C.

Denver, CO · 80202

303-863-9700

Mark Gilbert Emde

Reg. 77901

Patent attorney

Denver, CO · 80209

405-612-8899

Barton W Emery

Reg. 70038

Patent attorney

Boulder, CO · 80302

914-629-8197

Leon S Erikson

Reg. 59957

Patent attorney

The Law Office of Leon Erikson, LLC

Lakewood, CO · 80228

720-512-5875

Ashley R Essick

Reg. 55515

Patent attorney

Jaffery Watson Hamilton & DeSanctis LLP

Castle Pines, CO · 80108

303-589-7202

Brian J Eutermoser

Reg. 64058

Patent attorney

King & Spalding LLP

Denver, CO · 80202

720-535-2312

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.