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:
Dec. 10, 2024
Filed:
Jul. 23, 2019
Sumitomo Chemical Company Limited, Tokyo, JP;
Nicholas Dartnell, Eltisley, GB;
Simon Goddard, Impington, GB;
Christopher Newsome, St. Ives, GB;
Daniel Tobjork, Cambridgeshire, GB;
Sumitomo Chemical Company Limited, Tokyo, JP;
Abstract
A gas sensor system for measuring a plurality of gases in an environment. The gas sensors system comprises multiple gas sensors where each of the gas sensors includes a pair of electrodes separated by a semiconducting material. The gas pairs of electrodes of the gas sensors are separated by different distances in each of the gas sensors. Resistivity of the semiconducting material of the gas sensors changes in the presence of a first gas and a contact resistivity between the electrodes and the semiconducting material of gas sensors changes in the presence of a second gas. From measurements of total resistivity of each of the gas sensors the presence and/or the concentration of both the first and the second gas sensors can be determined.