#1Stanley John Gradisar (Stanley J. Gradisar Attorney at Law, LLC)
Serves this area from CO
Patent Attorneys & Agents in Castle Rock, CO
The top-ranked patent attorneys and agents serving Castle Rock, CO are Stanley John Gradisar (Stanley J. Gradisar Attorney at Law, LLC), Ashley R Essick (Jaffery Watson Hamilton & DeSanctis LLP) and Aslam A Jaffery (Jaffery Watson Mendonsa & Hamilton). We list 253 patent attorneys and agents serving Castle Rock, CO. 30 of the providers shown match an active record from U.S. Patent and Trademark Office, checked on the date shown. Rankings follow our published methodology; sponsored placements never change rank.
Patent Attorneys & Agents serving Castle Rock, CO (Douglas County). 253 providers, 10 of the top 10 verified against federal or state records. Registry records checked on 2026-11-04.
Top 10 ranked patent attorneys and agents for Castle Rock
#2Ashley R Essick (Jaffery Watson Hamilton & DeSanctis LLP)
Serves this area from CO#3Aslam A Jaffery (Jaffery Watson Mendonsa & Hamilton)
Serves this area from CO#4Hang Gao (JAFFERY WATSON HAMILTON & DESANCTIS LLP)
Serves this area from CO#5Howard S. Hamilton (Jaffery Watson Hamilton & DeSanctis LLP)
Serves this area from CO#6Kenneth J Cool (Spectrum IP Law Group LLC)
Serves this area from CO#7Mark C Van Ness (Jaffery Watson Hamilton & DeSanctis LLP)
Serves this area from CO#8Mark L Watson (Jaffery Watson Mendonsa & Hamilton LLC)
Serves this area from CO#9Michael A De Sanctis (Jaffery Watson Hamilton & DeSanctis LLP)
Serves this area from CO#10Ramin Aghevli (Spectrum IP Law Group LLC)
Serves this area from CO
20 more providers serving this area
- Steven P Skabrat (Jaffery Watson Hamilton & DeSanctis LLP), CO
- Charles Cobey Kinne (Kinne IP Group), CO
- Jeffrey Lynn Ihnen (Jondle & Associates, P.C.), CO
- John Arthur Crook III, CO
- Riley Z. Maurice-Snider, CO
- Wannell Marise Crook, CO
- Benjamin D Roberts, Parker, CO (8 mi)
- Craig M Lundell, Parker, CO (8 mi)
- Leonard E Heyman, Parker, CO (8 mi)
- Michelle R. Clock, Parker, CO (8 mi)
- Timothy S Sherwood, Parker, CO (8 mi)
- David Francis Zinger (Masque Publishing, Inc.), Lone Tree, CO (11 mi)
- Jerad M Denton (Charles Schwab), Lone Tree, CO (11 mi)
- Jerry Thomas Kearns (Attorney At Law), CO
- John T Kennedy (Wash Park IP Ltd.), CO
- Peter James Cudworth Normington (Consultar LLC), CO
- Amy M. Mapes (DISH Network L.L.C.), Inverness, CO (14 mi)
- Chad S Hilyard (Celerity IP, LLC), Inverness, CO (14 mi)
- Elizabeth S Janzen (COMPRO Corporation), Inverness, CO (14 mi)
- Grant P. White, Inverness, CO (14 mi)
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Frequently asked questions
How many patent attorneys and agents serve Castle Rock?
We list 253 patent attorneys and agents serving Castle Rock, CO: 0 based there and 253 serving it from nearby. 10 of the top 10 match an active federal or state record, checked on 2026-11-04.
Which patent attorneys and agents serve Castle Rock?
The top-ranked patent attorneys and agents serving Castle Rock, CO are Stanley John Gradisar (Stanley J. Gradisar Attorney at Law, LLC), Ashley R Essick (Jaffery Watson Hamilton & DeSanctis LLP), Aslam A Jaffery (Jaffery Watson Mendonsa & Hamilton), Hang Gao (JAFFERY WATSON HAMILTON & DESANCTIS LLP) and Howard S. Hamilton (Jaffery Watson Hamilton & DeSanctis LLP). The full ranked list, with the official records each provider matched, is on this page.
Which patent attorneys and agents serving Castle Rock are verified against official records?
10 of the top 10 match an active official record: Stanley John Gradisar (Stanley J. Gradisar Attorney at Law, LLC) (U.S. Patent and Trademark Office), Ashley R Essick (Jaffery Watson Hamilton & DeSanctis LLP) (U.S. Patent and Trademark Office), Aslam A Jaffery (Jaffery Watson Mendonsa & Hamilton) (U.S. Patent and Trademark Office), Hang Gao (JAFFERY WATSON HAMILTON & DESANCTIS LLP) (U.S. Patent and Trademark Office) and Howard S. Hamilton (Jaffery Watson Hamilton & DeSanctis LLP) (U.S. Patent and Trademark Office), and 5 more on this page. Each badge links to the official record it matched.
How are these companies ranked?
By our published methodology: verified registrations, documented capabilities, years registered and responsiveness. Sponsored placements are shown separately and never affect rank.
What does "Verified" mean on this page?
"Verified" means we matched the provider to an active official record on the date shown; each badge links to that record. The absence of a badge only means we have not verified that item.
What is the difference between a patent attorney and a patent agent?
Both are registered with the USPTO to prepare and prosecute patent applications. Patent attorneys are also licensed lawyers and can handle litigation and other legal matters; agents cannot.
"Verified" means we matched the provider to an active official record on the date shown. The absence of a badge only means we have not verified that item. How we rank and verify. Page updated .