Inventor · disambiguated record
Marcus Karel Sipkema
Also filed as: SIPKEMA MARCUS KAREL
3 granted patents·88 citations·filing 2003–2007
74Inventor score
Top patents by PatentIndex Score
3 records- 0181US7735996B2Connector assembly for connecting an earpiece of a hearing aid to glasses templeVARIBEL B V·Filed 2006·Granted Jun 15, 2010·33 cites·23 claims
- 0278US7609842B2Spectacle hearing aidVARIBEL B V·Filed 2003·Granted Oct 27, 2009·39 cites·28 claims
- 0369US8139801B2Hearing aid glasses using one omni microphone per templeSIPKEMA MARCUS KAREL·Filed 2007·Granted Mar 20, 2012·16 cites·4 claims
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