ZIP 21090
Patent attorneys in ZIP code 21090 · Maryland
ZIP code 21090 in Maryland 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 Northrop Grumman Corporation and Defense Cyber Crime Center.
All practitioners
Thu A Dang
Reg. 41544Patent attorney
Northrop Grumman Corporation
Linthicum, MD · 21090
Richard Kevin Giroux
Reg. 50567Patent attorney
Defense Cyber Crime Center
Linthicum Heights, MD · 21090
410-981-1093
Bruce E Villard· Jr.
Reg. 76288Patent attorney
Northrop Grumman Corporation
Linthicum, MD · 21090
410-993-7618
Common questions
Do patent attorneys in ZIP 21090 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 21090 tend to track the broader Maryland legal market.
How many USPTO practitioners list a ZIP 21090 office?
3 USPTO-registered patent practitioners list a ZIP 21090 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 21090 practitioner remotely?
Yes. All filings happen through USPTO's electronic Patent Center — no in-person presence is required. A ZIP 21090-based practitioner is convenient for local inventor signings and in-person meetings but not a requirement for representation.