Registered patent agent
Marc Christophersen
Firm
U.S. Naval Research Laboratory
Address
4555 Overlook Avenue S.W.
Code 7654
Washington, DC, 20375
US
Phone
Registered as
Registered patent agent
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Frequently asked
Frequently asked about Marc Christophersen
Is Marc Christophersen a registered patent attorney?
Marc Christophersen is a registered patent agent (USPTO Registration Number 64665). Patent agents can prepare and file patent applications but cannot give legal advice on infringement; for legal counsel, look for an attorney.
Where is Marc Christophersen located?
Marc Christophersen's office is in Washington, District of Columbia (20375). Affiliated with U.S. Naval Research Laboratory.
What firm does Marc Christophersen work at?
Marc Christophersen is listed as affiliated with U.S. Naval Research Laboratory on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Marc Christophersen?
Marc Christophersen's office phone (per the USPTO public roster) is 202-404-2884. 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.