Roh; Dong Sik
Patent Applications and Registrations
Patent applications and USPTO patent grants for Roh; Dong Sik.The latest application filed is for "led illumination device for spotlighting".
- Roh; Dong Sik - Seoul KR
| Patent | Date |
|---|---|
| High power LED lighting device Grant 10,132,468 - Kim , et al. November 20, 2 | 2018-11-20 |
| LED illumination device for spotlighting Grant 10,119,698 - Roh , et al. November 6, 2 | 2018-11-06 |
| Traffic accident occurrence notification system using LED display lamps Grant 9,990,847 - Kim , et al. June 5, 2 | 2018-06-05 |
| Led Illumination Device For Spotlighting App 20170307203 - ROH; Dong-Sik ; et al. | 2017-10-26 |
| Led Lighting Device Directly Coupled To Power Supply Unit App 20170292689 - ROH; Dong Sik ; et al. | 2017-10-12 |
| LED lighting device Grant 9,752,768 - Roh , et al. September 5, 2 | 2017-09-05 |
| Traffic Accident Occurrence Notification System Using Led Display Lamps App 20170084173 - Kim; Duk-Yong ; et al. | 2017-03-23 |
| Led Lighting Device App 20160003465 - Roh; Dong-Sik ; et al. | 2016-01-07 |
| High Power Led Lighting Device App 20150267876 - Kim; Duk Yong ; et al. | 2015-09-24 |
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