Registered patent attorney
Elizabeth A. O'Brien
Firm
Cherian Harkins Dunham LLP
Address
2001 L Street NW
Suite 650
Washington, DC, 20036
US
Phone
Registered as
Registered patent attorney
Other attorneys at Cherian Harkins Dunham LLP
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 Elizabeth A. O'Brien
Is Elizabeth A. O'Brien a registered patent attorney?
Yes. Elizabeth A. O'Brien is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 76105). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Elizabeth A. O'Brien located?
Elizabeth A. O'Brien's office is in Washington, District of Columbia (20036). Affiliated with Cherian Harkins Dunham LLP.
What firm does Elizabeth A. O'Brien work at?
Elizabeth A. O'Brien is listed as affiliated with Cherian Harkins Dunham LLP on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Elizabeth A. O'Brien?
Elizabeth A. O'Brien's office phone (per the USPTO public roster) is 202-873-1726. 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.