Patent Attorney Brett J Rosen

USPTO Data

USPTO data is frequently out of date.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

Reg. No.:56047
Firm/Company:Buchanan Ingersoll & Rooney PC
Address:King of Prussia, PA 19406
Last Updated:2026-07-13

Public Data

This information is obtained from searching the Internet and may be out of date or incorrect.

Firm/Company: Buchanan Ingersoll & Rooney PC
Other info: LinkedIn Profile
Firm Profile
Last Updated:2026-05-24

Top Applicants

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

Applicant Count
Dr. Ing. h.c. F. Porsche Aktiengesellschaft 1338
Mitsubishi Electric Corporation 1312
Konica Minolta, Inc. 936
TERUMO KABUSHIKI KAISHA 923
FANUC CORPORATION 761
JFE STEEL CORPORATION 607
Toray Industries, Inc. 572
Arkema France 507
MITSUI CHEMICALS, INC. 422
Continental Automotive GmbH 367
Loading...