Lee; Change Seok
Patent Applications and Registrations
Patent applications and USPTO patent grants for Lee; Change Seok.The latest application filed is for "led driving apparatus and method".
- Lee; Change Seok - Seoul N/A KR
| Patent | Date |
|---|---|
| LED driving apparatus and method Grant 8,890,431 - Lee , et al. November 18, 2 | 2014-11-18 |
| LED circuit Grant 8,796,942 - Lee , et al. August 5, 2 | 2014-08-05 |
| LED circuit Grant 8,749,147 - Lee , et al. June 10, 2 | 2014-06-10 |
| Led Driving Apparatus And Method App 20120306396 - LEE; Change Seok ; et al. | 2012-12-06 |
| Led Circuit App 20120299490 - LEE; Yeun Joong ; et al. | 2012-11-29 |
| Led Circuit App 20120299497 - LEE; Yeun Joong ; et al. | 2012-11-29 |
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