ZIP 20420
Patent attorneys in ZIP code 20420 · District of Columbia
ZIP code 20420 in District of Columbia has 3 USPTO-registered patent practitioners listed at addresses inside the ZIP. Every practitioner shown holds an active license to practice before the US Patent and Trademark Office. Local offices include U.S. Dept. of Veterans Affairs and Veterans Health Administration.
All practitioners
Bradley Thomas Knope
Reg. 58049Patent attorney
U.S. Dept. of Veterans Affairs
Washington, DC · 20420
202-461-8993
Kristine R. Moes
Reg. 83581Patent attorney
Veterans Health Administration
Washington DC, DC · 20420
813-894-241
Nicholas D. Xanthakos
Reg. 64628Patent attorney
Dept of Veterans Affairs
Washington, DC · 20420
202-461-7684
Common questions
Do patent attorneys in ZIP 20420 cost more than the national average?
Patent attorney fees vary primarily by experience and complexity of the invention, not by city. A typical provisional patent application in the US runs $1,500 to $5,000; a non-provisional utility filing runs $5,000 to $15,000. Hourly rates in ZIP 20420 tend to track the broader District of Columbia legal market.
How many USPTO practitioners list a ZIP 20420 office?
3 USPTO-registered patent practitioners list a ZIP 20420 mailing address on the OEDCI roster. You can sort by firm size and contact each directly using the phone numbers shown.
Can I work with a ZIP 20420 practitioner remotely?
Yes. All filings happen through USPTO's electronic Patent Center — no in-person presence is required. A ZIP 20420-based practitioner is convenient for local inventor signings and in-person meetings but not a requirement for representation.