Hoofddorp
Netherlands
3
2019-04-18
The entities that hold a legal rights for patent applications filed by inventor Krom Erik Marinus:
Erik Marinus Krom from Hoofddorp, NL has applied for patents for these inventions. The list has both pending applications and granted patents:
Valve, a transducer comprising a valve, a hearing device and a method
#2 | 2019-04-18Personal hearing device
#3 | 2019-04-18Sound channel element with a valve and a transducer with the sound channel element
2483809 ⎘