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.

Date of Patent:
Jan. 13, 2026

Filed:

Mar. 15, 2023
Applicant:

Logistics and Supply Chain Multitech R&d Centre Limited, Pok Ful Lam, HK;

Inventors:

Chun Hung Cheng, Pok Fu Lam, HK;

Ho Lam, Pok Fu Lam, HK;

Shiu Kee Luk, Pok Fu Lam, HK;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B60R 22/48 (2006.01); B60N 2/00 (2006.01);
U.S. Cl.
CPC ...
B60R 22/48 (2013.01); B60N 2/002 (2013.01); B60R 2022/4816 (2013.01); B60R 2022/4866 (2013.01);
Abstract

A retrofit system for the monitoring of seatbelt status in mass transit vehicles is adapted for retrofitting in different existing vehicles and includes a plurality of non-contact position sensors each associated with the buckle and tongue of a seatbelt, and a seat pan upholstery module with a seat occupancy sensor fixed to its inner side. The sensor of the non-contact position sensors is adapted to be fixed to an external surface of the buckle housing. A monitoring unit is coupled to the non-contact position sensors and occupancy sensors and to a display of seatbelt status comprising an indication that, when each of the seats is occupied, whether the respective seatbelt is in the fastened positioned or a released position.


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Cheng, Chun. (2026). Retrofit seatbelt monitoring system (U.S. Patent No. 12522173). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12522173

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