Registered patent attorney
Gregory D Caldwell
Firm
Elliott Ostrander & Preston, P.C.
Address
707 SW Washington Street
Suite 1500
Portland, OR, 97205
US
Phone
Registered as
Registered patent attorney
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Frequently asked
Frequently asked about Gregory D Caldwell
Is Gregory D Caldwell a registered patent attorney?
Yes. Gregory D Caldwell is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 39926). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Gregory D Caldwell located?
Gregory D Caldwell's office is in Portland, Oregon (97205). Affiliated with Elliott Ostrander & Preston, P.C..
What firm does Gregory D Caldwell work at?
Gregory D Caldwell is listed as affiliated with Elliott Ostrander & Preston, P.C. on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Gregory D Caldwell?
Gregory D Caldwell's office phone (per the USPTO public roster) is 503-224-7112. 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.