Registered patent attorney
Gregory A Duffey
Firm
Law Office of Gregory Duffey
Address
1300 Pennsylvania Avenue NW
Suite 700
Washington, DC, 20004
US
Phone
Registered as
Registered patent attorney
Other patent attorneys in Washington, District of Columbia
- Alisa S AbbottBanner Witcoff
- Ahmed Abdel-RahmanPillsbury Winthrop Shaw Pittman LLP
- Margaret A AbernathyBaker & Hostetler LLP
- Michael T. AbramsonJordan IP Law
- Khadija Abdulkadir AbuHoward University School of Law
- Deepa AcharyaQuinn Emanuel UrQuhart & Sullivan LLP
- Canek AcostaMayer Brown LLP
- Stephanie N. AdamakosPaul Hastings LLP
Frequently asked
Frequently asked about Gregory A Duffey
Is Gregory A Duffey a registered patent attorney?
Yes. Gregory A Duffey is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 42501). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Gregory A Duffey located?
Gregory A Duffey's office is in Washington, District of Columbia (20004). Affiliated with Law Office of Gregory Duffey.
What firm does Gregory A Duffey work at?
Gregory A Duffey is listed as affiliated with Law Office of Gregory Duffey on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Gregory A Duffey?
Gregory A Duffey's office phone (per the USPTO public roster) is 202-204-3038. Verify availability and intake details directly with the firm before sending privileged materials.
Should I prepare anything before contacting a patent attorney?
Yes — most patent attorneys quote based on a brief. Persoona's intellectual property module generates a prior-art analysis, defensibility scorecard, and a draft USPTO filing package so you arrive with a brief, not a blank slate. Free to run.
Profile sourced from the USPTO OEDCI Practitioner Roster. Persoona did not provide, edit, or curate this data — every field is pulled directly from the public roster.