Hoofddorp
Netherlands
5
2024-07-04
The entities that hold a legal rights for patent applications filed by inventor Groffen Camiel Eugène:
Camiel Eugène Groffen from Hoofddorp, NL has applied for patents for these inventions. The list has both pending applications and granted patents:
TRANSDUCER AND PORTABLE AUDIO DEVICE COMPRISING SUCH A TRANSDUCER
#2 | 2018-12-20Receiver assembly comprising an armature and a diaphragm
#3 | 2018-11-29Receiver with venting opening
#4 | 2018-06-28Magnet assembly
#5 | 2017-08-03Assembly comprising an electrostatic sound generator and a transformer
1950022 ⎘