Patent Attorney Robert S Silver

USPTO Data

USPTO data is frequently out of date. You can update your information at the USPTO OED website.

Reg. No.:35681
Firm/Company:Langer, Grogan and Diver, P.C.
Address:Philadelphia, PA 19103
Last Updated:2026-04-05

Public Data

This information is obtained from searching the Internet and may be out of date or incorrect.

Firm/Company: Trademark Search, Free, for Millions of Registered Trademarks with USPTO | Trademarkia
Other info: LinkedIn Profile
Firm Profile
Last Updated:2026-03-19

Top Applicants

This practitioner has been affiliated with the following applicants over the past 10 years.

Applicant Count
2449049 Ontario Inc. 5
Pike Therapeutics Inc. 5
NANO SAFE COATINGS INCORPORATED 4
Viscera Labs, Inc. 4
Regents of the University of Minnesota 3
Ascent Pharmaceuticals, Inc. 3
Pike Therapeutics, Inc.1219014 B.C. Ltd 3
POP TEST LLC 3
Pop Test Oncology Limited Liability Company 2
VivaVax Inc. 2
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