Yoon; Hyeon-goo
Patent Applications and Registrations
Patent applications and USPTO patent grants for Yoon; Hyeon-goo.The latest application filed is for "earphone for placement in an ear".
- Yoon; Hyeon-goo - Suwon-si KR
- Yoon; Hyeon Goo - Suwon KR
- Yoon, Hyeon Goo - Suwon-city KR
| Patent | Date |
|---|---|
| Earphone for placement in an ear Grant 8,139,806 - Hosaka , et al. March 20, 2 | 2012-03-20 |
| Speaker system having a front speaker integrated with a reflection-type surround speaker Grant 7,362,874 - Lee , et al. April 22, 2 | 2008-04-22 |
| Earphone for placement in an ear App 20080013774 - Hosaka; Akihiko ; et al. | 2008-01-17 |
| Speaker system having a front speaker integrated with a reflection-type surround speaker App 20040136553 - Lee, Jin Sub ; et al. | 2004-07-15 |
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