Registered patent attorney
Michael E. Barrett
Firm
CNA Global Specialty Lines
Address
333 South Wabash Avenue
Chicago, IL, 60604
US
Phone
Registered as
Registered patent attorney
Other patent attorneys in Chicago, Illinois
- Lawrence H AaronsonMcDonnell Boehnen Hulbert & Berghoff LLP
- 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 Michael E. Barrett
Is Michael E. Barrett a registered patent attorney?
Yes. Michael E. Barrett is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 74508). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Michael E. Barrett located?
Michael E. Barrett's office is in Chicago, Illinois (60604). Affiliated with CNA Global Specialty Lines.
What firm does Michael E. Barrett work at?
Michael E. Barrett is listed as affiliated with CNA Global Specialty Lines on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Michael E. Barrett?
Michael E. Barrett's office phone (per the USPTO public roster) is 312-822-4194. 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.