.
Patent No. 10-2374996 11th Mar 2022 Radiant heating panel and manufacturing method
ISO Certification 9001:2015 15th Apr 2022 Manufacture, design, and development of HOYA ONDOL
ISO Certification 14001:2015 15th Apr 2022 Manufacture, design, and development of HOYA ONDOL
Trademark Registration Registration No. 40-1862780 15th Apr 2022
Designation for KIST Family Company Period : 1th Dec 2021 ∽ 30th Nov 2024
Design registration Registration No. 30-1156162 17th Mar 2022
Design registration Registration No. 30-1156159 17th Mar 2022
Design registration Registration No. 30-1156161 17th Mar 2022
Korea Eco-Label Certification Period : 27th Jun 2022 26th Jun 2025 Ministry of Environment
Healthy Building Material Certification Period : 30th Sep 2022 ∽ 29th Sep 2025 Korea Air Purification Association