Registered patent attorney
Patrick E Brennan
Firm
Armstrong Teasdale LLP
Address
7700 Forsyth Blvd., Suite 1800
St. Louis, MO, 63105
US
Phone
Registered as
Registered patent attorney
Other attorneys at Armstrong Teasdale LLP
- Derick E AllenUSPTO Reg. 43468 · St. Louis, MO
- Lucas M. AmodioUSPTO Reg. 70239 · New York, NY
- Bruce T AtkinsUSPTO Reg. 43476 · Saint Louis, MO
- Deborah BaeUSPTO Reg. 75672 · Washington, DC
- Raoqiong BennettUSPTO Reg. 70519 · St. Louis, MO
- Daniel D. BraccianoUSPTO Reg. 76022 · St. Louis, MO
- Richard L BrophyUSPTO Reg. 69736 · St. Louis, MO
- Eric H. BrunngraberUSPTO Reg. 78090 · St. Louis, MO
Other patent attorneys in St. Louis, Missouri
- Erica L. AgnewUSPTO Reg. 80407
- Frank R AgovinoSenniger Powers LLP
- Lucinda Anne AlthauserBryan Cave, LLP
- Ralph E AltmannEmerson Electric Co.
- Holly M AmjadSolae, LLC
- Cecilia M AndrewsGillespie & Powers
- Juan F AriasWiedner & McAuliffe, Ltd.
- Michael Edwin Montgomery ArmstrongLewis Rice LLC
Frequently asked
Frequently asked about Patrick E Brennan
Is Patrick E Brennan a registered patent attorney?
Yes. Patrick E Brennan is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 56511). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Patrick E Brennan located?
Patrick E Brennan's office is in St. Louis, Missouri (63105). Affiliated with Armstrong Teasdale LLP.
What firm does Patrick E Brennan work at?
Patrick E Brennan is listed as affiliated with Armstrong Teasdale LLP on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Patrick E Brennan?
Patrick E Brennan's office phone (per the USPTO public roster) is 314-621-5070. 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.