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:
Feb. 11, 2025
Filed:
Oct. 17, 2016
Applicant:
Thermographic Measurements Limited, Connah's Quay, GB;
Inventor:
Gregory Heacock, Maple Valley, WA (US);
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 90/00 (2016.01); G01N 21/78 (2006.01); G01N 21/80 (2006.01); G01N 31/22 (2006.01);
U.S. Cl.
CPC ...
A61B 90/08 (2016.02); G01N 21/783 (2013.01); G01N 21/80 (2013.01); G01N 31/223 (2013.01); G01N 31/229 (2013.01); A61B 2090/081 (2016.02); G01N 31/221 (2013.01); G01N 31/225 (2013.01);
Abstract
According to embodiments of the present application, a color change sensor comprises a color change indicator and a substrate comprising a gas disposed on the color change indicator. The sensor may further comprise an interface layer that assists in containing the gas within the substrate. The sensor may be used with limited use, restricted use, or disposable apparatuses. The user may actuate the sensor by disrupting or removing the gas-containing substrate and/or the interface layer. Methods of making and using the color change sensor and related apparatuses are also disclosed.