Registered patent attorney
Patrick D Ertel
Firm
Marshall, Gerstein & Borun LLP
Address
233 South Wacker Drive
6300 Sears Tower
Chicago, IL, 60606
US
Phone
Registered as
Registered patent attorney
Other patent attorneys in Chicago, Illinois
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- Dennis J AbdelnourHonigman LLP
- Holby Matthew AbernNeal, Gerber & Eisenberg LLP
- Cassandra L. AbernathyUSPTO Reg. 75330
- John AbramicSteptoe & Johnson LLP
- David Brian AbramowitzLocke Lord LLP
- Hugh A AbramsShook, Hardy & Bacon LLP
- Matthias AbrellMarshall Gerstein & Borun, LLP
Frequently asked
Frequently asked about Patrick D Ertel
Is Patrick D Ertel a registered patent attorney?
Yes. Patrick D Ertel is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 26877). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Patrick D Ertel located?
Patrick D Ertel's office is in Chicago, Illinois (60606). Affiliated with Marshall, Gerstein & Borun LLP.
What firm does Patrick D Ertel work at?
Patrick D Ertel is listed as affiliated with Marshall, Gerstein & Borun LLP on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Patrick D Ertel?
Patrick D Ertel's office phone (per the USPTO public roster) is 312-474-6300. 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.