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Registered patent agent
Dorian E Deffenbaugh
Address
222 Parkhurst Terrace
Saint Louis, MO, 63119-3631
US
Phone
Registered as
Registered patent agent
Other patent attorneys in Saint Louis, Missouri
- Bruce T AtkinsArmstrong Teasdale LLP
- Alyson S. BeldonAir Products and Chemicals, Inc.
- Rita E. BleserUSPTO Reg. 67965
- John M BodenhausenUnited States District Court-
- Edward A BoeschensteinPolster Lieder Woodruff & Lucchesi LC
- Elizabeth A BogosianUSPTO Reg. 39911
- Randolph H. BrettonThe Law Offices of Randolph Bretton
- Ronald Alan BurchettNestle Purina
Frequently asked
Frequently asked about Dorian E Deffenbaugh
Is Dorian E Deffenbaugh a registered patent attorney?
Dorian E Deffenbaugh is a registered patent agent (USPTO Registration Number 84734). Patent agents can prepare and file patent applications but cannot give legal advice on infringement; for legal counsel, look for an attorney.
Where is Dorian E Deffenbaugh located?
Dorian E Deffenbaugh's office is in Saint Louis, Missouri (63119-3631).
How do I contact Dorian E Deffenbaugh?
Dorian E Deffenbaugh's office phone (per the USPTO public roster) is 314-640-3585. 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.