SUNG-KEUN LEE

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Huizhou City, CN

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Patents Grantslast 30 patents

Information Patent Grant
Emergency lamp
- Patent number 11,802,671
- Issue date Oct 31, 2023
- Je Woo Corporation, Ltd.
- Sung-Keun Lee
- F21 - LIGHTING
Information Patent Grant
Light emitting diode lamp
- Patent number 8,858,006
- Issue date Oct 14, 2014
- Je Woo Corporation, Ltd.
- Sung-Keun Lee
- F21 - LIGHTING
Information Patent Grant
Emergency-light indicator
- Patent number 8,296,977
- Issue date Oct 30, 2012
- Sung-Keun Lee
- F21 - LIGHTING
Information Patent Grant
Illuminated emergency sign
- Patent number 7,774,965
- Issue date Aug 17, 2010
- Je Woo Corporation, Ltd., Hui Yang
- Sung-Keun Lee
- G08 - SIGNALLING

Patents Applicationslast 30 patents

Information Patent Application
EMERGENCY LAMP
- Publication number 20230184400
- Publication date Jun 15, 2023
- Je Woo Corporation, Ltd.
- Sung-Keun LEE
- F21 - LIGHTING
Information Patent Application
LIGHT EMITTING DIODE LAMP
- Publication number 20130170180
- Publication date Jul 4, 2013
- Je Woo Corporation, Ltd.
- Sung-Keun Lee
- F21 - LIGHTING
Information Patent Application
EMERGENCY-LIGHT INDICATOR
- Publication number 20120174448
- Publication date Jul 12, 2012
- Je Woo Corporation, LTD.
- SUNG-KEUN LEE
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
EMERGENCY-LIGHT INDICATOR
- Publication number 20120124873
- Publication date May 24, 2012
- Je Woo Corporation, LTD.
- SUNG-KEUN LEE
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
ILLUMINATED EMERGENCY SIGN
- Publication number 20100107462
- Publication date May 6, 2010
- SUNG-KEUN LEE
- G08 - SIGNALLING