The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 28, 2025

Filed:

Oct. 08, 2024
Applicant:

Emergency Technology, Inc., Hudsonville, MI (US);

Inventors:

William S. Buehler, Hudsonville, MI (US);

Patrick James Eiswerth, Grand Rapids, MI (US);

Weston Harness, Hudsonville, MI (US);

Heather M. Meerman, Conklin, MI (US);

Douglas V. Baker, Hudsonville, MI (US);

Assignee:

Emergency Technology, Inc., Hudsonville, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21S 45/60 (2018.01); H05B 1/02 (2006.01); H05B 3/86 (2006.01);
U.S. Cl.
CPC ...
F21S 45/60 (2018.01); H05B 1/0236 (2013.01); H05B 3/86 (2013.01); H05B 2203/037 (2013.01); H05B 2214/02 (2013.01);
Abstract

A heated illumination assembly includes a light transmissive lens cover defining a first region and a second region. A first heater member having a first electrical resistance is disposed in the first region, and a second heater member having a second electrical resistance different from the first resistance is disposed in the second region. A controller module is configured to selectively electrically couple at least one of the first heater member and the second heater member to at least one power source, based on an input signal.


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