Cho; Bumchul
Patent Applications and Registrations
Patent applications and USPTO patent grants for Cho; Bumchul.The latest application filed is for "optical sheet and light emitting device package having the same".
- Cho; Bumchul - Seoul N/A KR
| Patent | Date |
|---|---|
| Light-emitting device package providing improved luminous efficacy and uniform distribution Grant 8,766,526 - Cho July 1, 2 | 2014-07-01 |
| Optical sheet and light emitting device package having the same Grant 8,613,533 - Cho December 24, 2 | 2013-12-24 |
| Optical Sheet And Light Emitting Device Package Having The Same App 20120026720 - CHO; BumChul | 2012-02-02 |
| Light-emitting Device Package App 20110316409 - CHO; Bumchul | 2011-12-29 |
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