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:
Jun. 02, 2026
Filed:
Apr. 21, 2021
Lg Electronics Inc., Seoul, KR;
Youngseung Song, Seoul, KR;
Kyongbae Park, Seoul, KR;
Yunsu Cho, Seoul, KR;
Namsoo Cho, Seoul, KR;
Kyunghun Cha, Seoul, KR;
Sangbok Choi, Seoul, KR;
LG ELECTRONICS INC., Seoul, KR;
Abstract
A refrigerator according to an embodiment includes an evaporator; a defrost heater; a temperature sensor to sense a temperature associated with the evaporator; and a controller to control the defrost heater. In response to reaching a defrost operation starting point, the controller is configured to perform a defrost operation mode, perform a continuous operation mode, in which the defrost heater continuously turns on, and a pulsed operation mode, in which the defrost heater switches between on and off, based on the defrost operation mode. In response to performing the pulsed operation mode, the controller is configured to change the ON duration or power level of the defrost heater.