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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.:

US 10794833 B1

PDFFull Text
Date of Patent:
Oct. 06, 2020

Filed:

Dec. 15, 2017

Packaging and methods for detecting exposure of a perishable good to an elevated temperature

Applicant:

Wisconsin Alumni Research Foundation, Madison, WI (US);

Inventors:

Sundaram Gunasekaran, Madison, WI (US);

Seok won Lim, Seoul, KR;

Assignee:

WISCONSIN ALUMNI RESEARCH FOUNDATION, Madison, WI (US);

Attorney:

Quarles & Brady LLP

Primary Examiner:

Maureen Wallenhorst

Int. Cl.
CPC ...
G01N 21/78 (2006.01); G01N 21/27 (2006.01); G01N 33/20 (2019.01); G01N 33/02 (2006.01); G01K 3/04 (2006.01); G01K 11/12 (2006.01);
U.S. Cl.
CPC ...
G01N 21/78 (2013.01); G01K 3/04 (2013.01); G01N 21/272 (2013.01); G01N 33/20 (2013.01); G01K 11/12 (2013.01); G01N 33/02 (2013.01);
Abstract

Nanoreactors having a metal precursor in a carrier are provided. In some embodiments, upon exposure to heat, the metal precursor forms nanoparticles that can be detected, e.g., by detecting a color change in the nanoreactor and/or by detecting the number and/or size and/or size distribution and/or shape of the nanoparticles. The nanoreactors can be used, in some embodiments, as time-temperature indicators for perishable goods.

Find Patent Forward Citations

Gunasekaran, Sundaram. (2020). Packaging and methods for detecting exposure of a perishable good to an elevated temperature (U.S. Patent No. 10794833). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10794833

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