Registered patent attorney
Warren A Zitlau
Firm
Cahn & Samuels, LLP
Address
1100 17th Street, NW
Suite 401
Washington, DC, 20036
US
Phone
Registered as
Registered patent attorney
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Frequently asked
Frequently asked about Warren A Zitlau
Is Warren A Zitlau a registered patent attorney?
Yes. Warren A Zitlau is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 39085). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Warren A Zitlau located?
Warren A Zitlau's office is in Washington, District of Columbia (20036). Affiliated with Cahn & Samuels, LLP.
What firm does Warren A Zitlau work at?
Warren A Zitlau is listed as affiliated with Cahn & Samuels, LLP on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Warren A Zitlau?
Warren A Zitlau's office phone (per the USPTO public roster) is 202-331-8777. 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.