Registered patent attorney
Gregory A Duff
Firm
RMMS LLP
Address
6 W Hubbard St
Suite 5000
Chicago, IL, 60654
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 Gregory A Duff
Is Gregory A Duff a registered patent attorney?
Yes. Gregory A Duff is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 57507). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Gregory A Duff located?
Gregory A Duff's office is in Chicago, Illinois (60654). Affiliated with RMMS LLP.
What firm does Gregory A Duff work at?
Gregory A Duff is listed as affiliated with RMMS LLP on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Gregory A Duff?
Gregory A Duff's office phone (per the USPTO public roster) is 312-222-6315. 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.