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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 12742755 B1

PDFFull Text
Date of Patent:
Sep. 22, 2026

Filed:

Apr. 15, 2024

Methods for identifying sulfur-treated food products

Applicant:

Hong Kong Baptist University, Hong Kong, CN;

Inventors:

Jun Xu, Hong Kong, CN;

Weihao Zhang, Hong Kong, CN;

Kam Chun Chan, Hong Kong, CN;

Yui Man Chan, Hong Kong, CN;

Hanyan Luo, Hong Kong, CN;

Assignee:

Hong Kong Baptist University, Hong Kong, CN;

Attorney:

S&F/WEHRW

Primary Examiner:

Nguyen Q Ha

Int. Cl.
CPC ...
G01N 33/02 (2006.01); B01D 15/16 (2006.01); G01N 30/72 (2006.01); G01N 30/88 (2006.01); H01J 49/00 (2006.01); G01N 30/02 (2006.01);
U.S. Cl.
CPC ...
G01N 30/7233 (2013.01); B01D 15/163 (2013.01); G01N 30/88 (2013.01); G01N 33/02 (2013.01); H01J 49/004 (2013.01); G01N 2030/027 (2013.01); G01N 2030/884 (2013.01);
Abstract

A method of identifying a sulfur-treated food product, the method including: providing a sample including a food product; analyzing the sample using an analytical method to determine whether the sample includes tryptophan sulfonate; and identifying based on whether the sample includes tryptophan sulfonate that the food product is sulfur-treated, wherein the presence of tryptophan sulfonate indicates that the food product is sulfur-treated.

Find Patent Forward Citations

Xu, Jun. (2026). Methods for identifying sulfur-treated food products (U.S. Patent No. 12742755). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12742755

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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