Registered patent attorney
Douglas J Nienaber
Address
P.O. Box 210829
Cincinnati, OH, 45221-0829
US
Phone
Registered as
Registered patent attorney
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Frequently asked
Frequently asked about Douglas J Nienaber
Is Douglas J Nienaber a registered patent attorney?
Yes. Douglas J Nienaber is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 52071). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Douglas J Nienaber located?
Douglas J Nienaber's office is in Cincinnati, Ohio (45221-0829).
How do I contact Douglas J Nienaber?
Douglas J Nienaber's office phone (per the USPTO public roster) is 513-558-3098. 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.