Registered patent attorney
David B Walker
Firm
Barcelo & Harrison, LLP
Address
1629 K Street, N. W., Suite 300
Washington, DC, 20006
US
Phone
Registered as
Registered patent attorney
Other attorneys at Barcelo & Harrison, 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 David B Walker
Is David B Walker a registered patent attorney?
Yes. David B Walker is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 43976). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is David B Walker located?
David B Walker's office is in Washington, District of Columbia (20006). Affiliated with Barcelo & Harrison, LLP.
What firm does David B Walker work at?
David B Walker is listed as affiliated with Barcelo & Harrison, LLP on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact David B Walker?
David B Walker's office phone (per the USPTO public roster) is 202-567-6778. 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.