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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 12067903 B1

PDFFull Text
Date of Patent:
Aug. 20, 2024

Filed:

Dec. 24, 2020

Method for manufacturing food indicator

Applicant:

Cj Cheiljedang Corporation, Seoul, KR;

Inventors:

Grace Kim, Suwon-si, KR;

Do Wan Kim, Suwon-si, KR;

Kyoung Sik Cho, Suwon-si, KR;

Seok Jun Hong, Suwon-si, KR;

Assignee:

CJ CHEILJEDANG CORPORATION, Seoul, KR;

Attorney:

Merchant & Gould P.C.

Primary Examiner:

Shin H Kim

Int. Cl.
CPC ...
G01N 33/12 (2006.01); B32B 7/06 (2019.01); B32B 7/12 (2006.01); B32B 27/36 (2006.01); B32B 37/12 (2006.01); B65D 65/38 (2006.01); C09J 7/25 (2018.01); C09J 7/38 (2018.01); G01N 21/78 (2006.01); G01N 31/22 (2006.01); G09F 3/00 (2006.01); G09F 3/10 (2006.01); G09F 3/02 (2006.01);
U.S. Cl.
CPC ...
G09F 3/0291 (2013.01); B32B 7/06 (2013.01); B32B 7/12 (2013.01); B32B 27/36 (2013.01); B32B 37/12 (2013.01); C09J 7/255 (2018.01); C09J 7/38 (2018.01); G01N 31/221 (2013.01); G09F 3/10 (2013.01); B32B 2250/02 (2013.01); B32B 2255/10 (2013.01); B32B 2255/26 (2013.01); B32B 2307/4023 (2013.01); B32B 2307/4026 (2013.01); B32B 2307/724 (2013.01); B32B 2307/7242 (2013.01); B32B 2439/70 (2013.01); B32B 2519/00 (2013.01); B32B 2553/00 (2013.01); G09F 2003/021 (2013.01); G09F 2003/0225 (2013.01); G09F 2003/023 (2013.01); G09F 2003/0257 (2013.01);
Abstract

The present application relates to a method for manufacturing an indicator for food that can visually check the quality change in food in a package state, an indicator for food manufactured therefrom, and a method for checking the storage status of food using the same. The manufacturing method of an indicator for food of the present application includes bonding a first film, on which an indicator layer including a pH-sensitive indicator is formed on one surface thereof, and a second film, on which an adhesive layer is formed on one surface thereof, so that the indicator layer of the first film and the adhesive layer of the second film can face each other.

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