Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8290197 | Electrostatic speaker systems and methods | Ronald Buining, Hidde de Haan, Ton Hoogstraaten, Uwe Kempe, Karl-Heinz Fink +1 more | 2012-10-16 |
| 8000483 | Electrostatic loudspeaker systems and methods | Hidde de Haan, James Tuomy, Ronald Buining, Ton Hoogstraaten | 2011-08-16 |