Inventor
GROFFEN CAMIEL EUGÈNE
NL4 patents
Patents
4 patentsUS10699833B2Jun 30, 2020
Magnet assembly
SONION NEDERLAND BV2 citations69
US10721566B2Jul 21, 2020
Receiver assembly comprising an armature and a diaphragm
SONION NEDERLAND BV2 citations64
US10687148B2Jun 16, 2020
Assembly comprising an electrostatic sound generator and a transformer
SONION NEDERLAND BV0 citations34
US10708685B2Jul 7, 2020
Receiver with venting opening
SONION NEDERLAND BV0 citations32