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.
Patent No.:
Date of Patent:
Mar. 30, 2021
Filed:
Apr. 18, 2019
Gentex Corporation, Zeeland, MI (US);
David J. Cammenga, Zeeland, MI (US);
Kurtis L. Geerlings, Zeeland, MI (US);
Joel C. Nemes, Holland, MI (US);
William L. Tonar, Holland, MI (US);
David E. Christian, Zeeland, MI (US);
Darin D. Tuttle, Byron Center, MI (US);
Xiaoxu Niu, Grand Rapids, MI (US);
GENTEX CORPORATION, Zeeland, MI (US);
Abstract
A detector is provided including a plurality of nanofiber chemical sensors, each having an electrical characteristic; and a processing and alarm circuit in electrical communication with the plurality of nanofiber chemical sensors; wherein the electrical characteristics of at least one of the plurality of nanofiber chemical sensors changes in the presence of a first airborne material; wherein the electrical characteristics of at least one of the plurality of nanofiber chemical sensors changes in the presence of a second airborne material; and wherein the changes in the electrical characteristics of at least one of the plurality of nanofiber chemical sensors in the presence of the first airborne material are different from the changes in the electrical characteristics of at least one of the plurality of nanofiber chemical sensors in the presence of the second airborne material.