Patent Attorney Hal Sanders Gwin Jr

USPTO Data

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Reg. No.:33242
Firm/Company:Shumaker & Sieffert, P.A.
Address:Woodbury, MN 55125
Last Updated:2026-10-02

Public Data

This information is obtained from searching the Internet and may be out of date or incorrect.

Firm/Company: Shumaker & Sieffert | Patent Protection. Engineered.
Other info: LinkedIn Profile
Firm Profile
Last Updated:2026-10-27

Top Applicants

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

Applicant Count
Battelle Memorial Institute 77
ECOLAB USA INC. 18
Regents of the University of Minnesota 13
Medtronic, Inc. 10
3M INNOVATIVE PROPERTIES COMPANY 7
SWIMC LLC 6
LG Fuel Cell Systems, Inc. 5
Higher Dimension Materials, Inc. 4
ROLLS-ROYCE plc 4
Valspar Sourcing, Inc. 3
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