Mattijs Tjepkema

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Velsen-Noord, NL

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Patents Grantslast 30 patents

Information Patent Grant
Receiver assembly comprising an armature and a diaphragm
- Patent number 10,721,566
- Issue date Jul 21, 2020
- Sonion Nederland B.V.
- Mattijs Tjepkema
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Receiver-in-canal assembly comprising a diaphragm and a cable conne...
- Patent number 10,674,246
- Issue date Jun 2, 2020
- Sonion Nederland B.V.
- Ewian Vos
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Receiver-in-canal assembly comprising a diaphragm and a cable conne...
- Patent number 9,980,029
- Issue date May 22, 2018
- Sonion Nederland B.V.
- Ewian Vos
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
RECEIVER ASSEMBLY COMPRISING AN ARMATURE AND A DIAPHRAGM
- Publication number 20180367916
- Publication date Dec 20, 2018
- Sonion Nederland BV
- Mattijs Tjepkema
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
RECEIVER-IN-CANAL ASSEMBLY COMPRISING A DIAPHRAGM AND A CABLE CONNE...
- Publication number 20180249238
- Publication date Aug 30, 2018
- Sonion Nederland B.V.
- Ewian Vos
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
RECEIVER-IN-CANAL ASSEMBLY COMPRISING A DIAPHRAGM AND A CABLE CONNE...
- Publication number 20160286298
- Publication date Sep 29, 2016
- Sonion Nederland BV
- Ewian Vos
- H04 - ELECTRIC COMMUNICATION TECHNIQUE