Registered patent attorney
William P O'Sullivan
Firm
Sheehan Phinney Bass + Green,
Professional Association
Address
1000 Elm Street, 17th Floor
Manchester, NH, 03101
US
Phone
Registered as
Registered patent attorney
Other patent attorneys in Manchester, New Hampshire
- David S AndreasenFinch & Maloney PLLC
- Lindsey E. AndrewsGrossman, Tucker, Perreault & Pfleger, PLLC
- Franklin R. BryanFinch & Maloney PLLC
- Kevin J CarrollGrossman, Tucker, Perreault & Pfleger, PLLC
- Mark A. ClarnerVelcro USA Inc.
- Zachary A CodyUSPTO Reg. 71930
- Reid Knott CunninghamDEKA Products Limited Partnership
- Colin P. DeanHayes Soloway P.C.
Frequently asked
Frequently asked about William P O'Sullivan
Is William P O'Sullivan a registered patent attorney?
Yes. William P O'Sullivan is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 59005). Registration is verified against the USPTO Office of Enrollment and Discipline roster.
Where is William P O'Sullivan located?
William P O'Sullivan's office is in Manchester, New Hampshire (03101). Affiliated with Sheehan Phinney Bass + Green,.
What firm does William P O'Sullivan work at?
William P O'Sullivan is listed as affiliated with Sheehan Phinney Bass + Green, on the USPTO Office of Enrollment and Discipline practitioner roster.
How do I contact William P O'Sullivan?
William P O'Sullivan's office phone (per the USPTO public roster) is 603-627-8186. 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.