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:
Apr. 28, 2026
Filed:
May. 11, 2022
Iucf-hyu (Industry-university Cooperation Foundation Hanyang University), Seoul, KR;
Dong Rip Kim, Seoul, KR;
Hyeonho Lee, Daegu, KR;
Jaehyeon Jeon, Seoul, KR;
Jung Bin Yang, Jeonju-Si, KR;
Abstract
A temperature-responsive hydrophilic-hydrophobic conversion surface has a surface property that is hydrophobic at a low temperature and is converted to be hydrophilic when the temperature rises. Accordingly, by applying the conversion surface to the fins of a heat exchanger, frost formation can be delayed in a low temperature environment due to the hydrophobicity, and remaining meltwater can be easily dried due to the conversion of the surface from hydrophobic to hydrophilic when the temperature is raised for defrosting. Therefore, the surface property of the fins of a heat exchanger is automatically converted according to the temperature and exhibits only favorable advantages at respective temperatures, so that heat transfer performance and power efficiency of the heat exchange can be effectively improved.