ZIP 21210
Patent attorneys in ZIP code 21210 · Maryland
ZIP code 21210 in Maryland has 4 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 Bilyan, LLC.
All practitioners
William M Blackstone
Reg. 29772Patent agent
Baltimore, MD · 21210
410-433-1014
Marita K Mike
Reg. 46040Patent attorney
Baltimore, MD · 21210
410-889-1163
Jill A Tarzian Sorensen
Reg. 34959Patent attorney
Bilyan, LLC
Baltimore, MD · 21210
443--51-4-7122
Sam Lawrence Williams
Reg. 68071Patent attorney
Baltimore, MD · 21210
202-596-7267
Common questions
Do patent attorneys in ZIP 21210 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 21210 tend to track the broader Maryland legal market.
How many USPTO practitioners list a ZIP 21210 office?
4 USPTO-registered patent practitioners list a ZIP 21210 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 21210 practitioner remotely?
Yes. All filings happen through USPTO's electronic Patent Center — no in-person presence is required. A ZIP 21210-based practitioner is convenient for local inventor signings and in-person meetings but not a requirement for representation.