Registered patent attorney
Brian Douglas Siff
Firm
Duane Morris LLP
Address
1540 Broadway
New York, NY, 10036
US
Phone
Registered as
Registered patent attorney
Other attorneys at Duane Morris LLP
- Samuel W ApicelliUSPTO Reg. 36427 · Philadelphia, PA
- John M BairdUSPTO Reg. 57585 · Washington, DC
- Paul H. BelnapUSPTO Reg. 73106 · Washington, DC
- Lawrence P CassonUSPTO Reg. 46606 · New York, NY
- Brandon A. ChanUSPTO Reg. 76541 · New York, NY
- Ching-Yang ChenUSPTO Reg. 70614 · San Diego, CA
- Brad Yee ChinUSPTO Reg. 52738 · Washington, DC
- Nicholas ColluraUSPTO Reg. 72157 · Philadelphia, PA
Other patent attorneys in New York, New York
- Ghalia AamerColumbia Law School
- Mark J AbatePillsbury Winthrop Shaw Pittman
- Ahmed B AbdelqaderFish and Richardson P.C.
- Gary AbelevHunton Andrews Kurth LLP
- Samuel B AbramsDechert LLP
- Bruce D. AbramsonBruce Abramson
- Ronald AbramsonListon Abramson LLP
- Peter A AbruzzeseKramer Levin Naftalis & Frankel LLP
Frequently asked
Frequently asked about Brian Douglas Siff
Is Brian Douglas Siff a registered patent attorney?
Yes. Brian Douglas Siff is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 35679). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is Brian Douglas Siff located?
Brian Douglas Siff's office is in New York, New York (10036). Affiliated with Duane Morris LLP.
What firm does Brian Douglas Siff work at?
Brian Douglas Siff is listed as affiliated with Duane Morris LLP on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact Brian Douglas Siff?
Brian Douglas Siff's office phone (per the USPTO public roster) is 212-692-1000. 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.