de Haan; Hidde
Patent Applications and Registrations
Patent applications and USPTO patent grants for de Haan; Hidde.The latest application filed is for "electrostatic speaker systems and methods".
- de Haan; Hidde - Jomtien TH
| Patent | Date |
|---|---|
| Electrostatic speaker systems and methods Grant 8,290,197 - Buining , et al. October 16, 2 | 2012-10-16 |
| Electrostatic loudspeaker systems and methods Grant 8,000,483 - de Haan , et al. August 16, 2 | 2011-08-16 |
| Electrostatic Speaker Systems and Methods App 20100272309 - Buining; Ronald ; et al. | 2010-10-28 |
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