Registered patent attorney
Matthew O Duffey
Firm
Amgen, Inc.
Address
1111 Hardscrabble Rd
Chappaqua, NY, 10514
US
Phone
Registered as
Registered patent attorney
Other attorneys at Amgen, Inc.
- Osama Y BadawiUSPTO Reg. 66379 · Tampa, FL
- Nancy Jean GettelUSPTO Reg. 57481 · Thousand Oaks, CA
- Petrina Sze-Wai HsiUSPTO Reg. 38496 · Thousand Oaks, CA
- Melissa Elizabeth KarabinisUSPTO Reg. 51860 · South San Francisco, CA
- Peter KorakasUSPTO Reg. 66513 · Cambridge, MA
- Olga MekhovichUSPTO Reg. 63386 · South San Francisco, CA
- David B RanUSPTO Reg. 38589 · Seattle, WA
- G. Prabhakar ReddyUSPTO Reg. 47890 · Thousand Oaks, CA
Frequently asked
Frequently asked about Matthew O Duffey
Is Matthew O Duffey a registered patent attorney?
Yes. Matthew O Duffey is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 73865). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Matthew O Duffey located?
Matthew O Duffey's office is in Chappaqua, New York (10514). Affiliated with Amgen, Inc..
What firm does Matthew O Duffey work at?
Matthew O Duffey is listed as affiliated with Amgen, Inc. on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Matthew O Duffey?
Matthew O Duffey's office phone (per the USPTO public roster) is 914-908-0709. 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.