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:
Jul. 15, 2025
Filed:
May. 24, 2022
Honeywell International Inc., Charlotte, NC (US);
JePhil Ahn, Seoul, KR;
Jaeyeol Shim, Seoul, KR;
HyungWoo Baek, Seoul, KR;
SeungYong Shin, Seoul, KR;
WoongSung Hwang, Seoul, KR;
HyeonHo So, Seoul, KR;
JinEok Cho, Seoul, KR;
Honeywell International Inc., Charlotte, NC (US);
Abstract
Methods, apparatuses, and systems for detecting catalytic pellistor poisoning of a gas sensing apparatus including a resistor, a detector, and a compensator are provided. The method includes sampling a voltage reading of the resistor, calculating an electric current value of a gas sensing apparatus circuit based on the sampled voltage reading of the resistor, sampling voltage readings associated with the detector and the compensator for a duration of time, calculating resistance values of the detector and resistance values of the compensator based on the sampled voltage readings from the detector and the compensator, comparing the resistance values of the detector with the resistance values of the compensator, and identifying poisoning of the gas sensing apparatus based on the comparison.