Darby L. Gilfillan
Patent agent, USPTO registration number 84667, status Active.
- Firm
- Erise IP, P.A.
- Location
- Denver, CO
- On the USPTO roster since
- April 2026
Darby L. Gilfillan is a USPTO-registered patent agent (registration number 84667) at Erise IP, P.A., in Denver, CO. The registration is active on the current USPTO roster, and Darby L. Gilfillan has been listed on the roster since April 2026.
Erise IP, P.A. is listed with one registered practitioner on the current roster.
Denver, CO has 400 registered patent practitioners in all: 325 patent attorneys and 74 patent agents.
Other registered practitioners in Denver, CO
- Eric Ching Sung Cheong — Patent attorney, Reg. No. 75236, Lewis Roca Rothgerber Christie LLP
- Peter E. Chevalier — Patent attorney, Reg. No. 64244, Equinix, Inc.
- Jack J. Chmura — Patent agent, Reg. No. 83009, Dorsey & Whitney
- Ho-Young R. Chung — Patent attorney, Reg. No. 60584, Perkins Coie LLP
- Cyrus Y. Chung — Patent attorney, Reg. No. 61768, U.S. District Court for the District of Colorado
- Annie L. Clark — Patent agent, Reg. No. 78271, Setter Roche Smith & Shellenberger LLP
- Robert T. Clarke, Jr. — Patent attorney, Reg. No. 60630, United States Patent and Trademark Office - Rocky Mountain Regional Office
- Dan Cleveland, Jr — Patent attorney, Reg. No. 36106, Liberty Oilfield Services LLC
All patent attorneys and agents in Denver, CO
Patent firms in Colorado · Practitioners by state
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