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:
May. 20, 2025
Filed:
Dec. 05, 2017
Applicant:
Thermographic Measurements Limited, Connah's Quay, GB;
Inventors:
Gregory L. Heacock, Maple Valley, WA (US);
Andrew Mills, Holywood, GB;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 31/22 (2006.01); B29C 48/04 (2019.01); B32B 27/00 (2006.01); C08J 3/02 (2006.01); C08J 3/12 (2006.01); C08J 3/22 (2006.01); C08K 5/17 (2006.01); C08K 9/10 (2006.01); C08L 23/04 (2006.01); C08L 23/06 (2006.01); C08L 23/12 (2006.01); C08L 25/06 (2006.01); C08L 33/12 (2006.01); C08K 5/00 (2006.01); C08K 5/42 (2006.01); C08K 5/46 (2006.01);
U.S. Cl.
CPC ...
G01N 31/223 (2013.01); B29C 48/04 (2019.02); B32B 27/00 (2013.01); C08J 3/02 (2013.01); C08J 3/126 (2013.01); C08J 3/226 (2013.01); C08K 5/17 (2013.01); C08K 9/10 (2013.01); C08L 23/04 (2013.01); C08L 23/06 (2013.01); C08L 23/12 (2013.01); C08L 25/06 (2013.01); C08L 33/12 (2013.01); C08K 5/0041 (2013.01); C08K 5/42 (2013.01); C08K 5/46 (2013.01); C08L 2666/70 (2013.01);
Abstract
Color changeable indicator particles having a meltable, particulate organic core, and at least one color changeable indicator coated on the particulate organic core. Color changeable indicator particles can be incorporated into composite polymer materials while maintaining the efficacy and stability of the indicator. The indicators provide simple, reliable, and cost effective detection means for detecting ammonia and carbon dioxide, and may find use in applications such as food packaging and medical applications.