Registered patent attorney
David H. Madden
Firm
Mersenne Law LLP
Address
9600 S.W. Oak Street
Suite 500
Tigard, OR, 97223
US
Phone
Registered as
Registered patent attorney
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Frequently asked about David H. Madden
Is David H. Madden a registered patent attorney?
Yes. David H. Madden is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 67100). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is David H. Madden located?
David H. Madden's office is in Tigard, Oregon (97223). Affiliated with Mersenne Law LLP.
What firm does David H. Madden work at?
David H. Madden is listed as affiliated with Mersenne Law LLP on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact David H. Madden?
David H. Madden's office phone (per the USPTO public roster) is 503-679-1671. 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.