Choong-Yong Sohn

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Cheongju-si, KR

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Patents Grantslast 30 patents

Information Patent Grant
LED lighting apparatus having natural convection-type heat dissipat...
- Patent number 10,197,262
- Issue date Feb 5, 2019
- SAMJIN LND CO., LTD.
- Choong-yong Sohn
- F21 - LIGHTING
Information Patent Grant
LED lighting apparatus
- Patent number 9,599,320
- Issue date Mar 21, 2017
- SAMJIN LND CO., LTD.
- Choong-Yong Sohn
- F21 - LIGHTING

Patents Applicationslast 30 patents

Information Patent Application
LED LIGHTING APPARATUS HAVING NATURAL CONVECTION-TYPE HEAT DISSIPAT...
- Publication number 20180209636
- Publication date Jul 26, 2018
- SAMJIN LND CO., LTD.
- Choong-yong SOHN
- F21 - LIGHTING
Information Patent Application
LED LIGHTING APPARATUS
- Publication number 20150345754
- Publication date Dec 3, 2015
- SAMJIN LND CO., LTD.
- Choong-Yong Sohn
- F21 - LIGHTING