Registered patent attorney

Ryan S Osterweil

USPTO Reg. 67065

Firm

Day Pitney LLP

Address

One Stamford Plaza

263 Tresser Boulevard, 7th Floor

Stamford, CT, 06901-3236

US

Phone

Registered as

Registered patent attorney

Other attorneys at Day Pitney LLP

Other patent attorneys in Stamford, Connecticut

Browse all Stamford patent attorneys →

Frequently asked

Frequently asked about Ryan S Osterweil

  • Is Ryan S Osterweil a registered patent attorney?

    Yes. Ryan S Osterweil is a registered patent attorney with the United States Patent and Trademark Office (USPTO Registration Number 67065). Registration is verified against the USPTO Office of Enrollment and Discipline roster.

  • Where is Ryan S Osterweil located?

    Ryan S Osterweil's office is in Stamford, Connecticut (06901-3236). Affiliated with Day Pitney LLP.

  • What firm does Ryan S Osterweil work at?

    Ryan S Osterweil is listed as affiliated with Day Pitney LLP on the USPTO Office of Enrollment and Discipline practitioner roster.

  • How do I contact Ryan S Osterweil?

    Ryan S Osterweil's office phone (per the USPTO public roster) is 203-977-7300. 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.

build 4315ed5 · 2026-05-22 16:49 EDT