Inventor · disambiguated record
Leif Johannsen
Also filed as: JOHANNSEN LEIF
8 granted patents·11 pending applications·344 citations·filing 2002–2023
89Inventor score
Top patents by PatentIndex Score
19 records- 0192US7254248B2One-magnet rectangular transducerSONION HORSENS AS·Filed 2003·Granted Aug 7, 2007·90 cites·10 claims
- 0291US7376240B2Coil for an electroacoustic transducerSONION HORSENS AS·Filed 2004·Granted May 20, 2008·83 cites·5 claims
- 0391US7062063B2Electroacoustic transducerSONION HORSENS AS·Filed 2002·Granted Jun 13, 2006·90 cites·15 claims
- 0487US6931140B2Electro-acoustic transducer with two diaphragmsSONIONKIRK AS·Filed 2002·Granted Aug 16, 2005·42 cites·25 claims
- 0583US7922462B2Actuator system comprising lever mechanismNOVO NORDISK AS·Filed 2006·Granted Apr 12, 2011·31 cites·11 claims
- 0675US12478741B2Drug delivery system with multipolar magnet and sensor systemNOVO NORDISK AS·Filed 2023·Granted Nov 25, 2025·0 cites·9 claims
- 0772US7974433B2Insert molded surround with mechanical supportGETTOP EUROP R & D APS·Filed 2006·Granted Jul 5, 2011·8 cites·15 claims
- 0856US11684722B2Drug delivery system with multipolar magnet and sensor systemNOVO NORDISK AS·Filed 2018·Granted Jun 27, 2023·0 cites·12 claims
- 0953US2006188126A1Miniature multi-loudspeaker moduleANDERSEN MORTEN K·Filed 2006·Application pending·0 cites
- 1047US2006050906A1Electro-acoustic transducer with two diaphragmsVAN HALTEREN AART Z·Filed 2005·Application pending·0 cites
- 1146US2007071274A1Insert moulded surround with integrated lead-out wiresANDERSEN MORTEN K·Filed 2006·Application pending·0 cites
- 1245US2011166524A1Actuator System Comprising Lever MechanismNOVO NORDISK AS·Filed 2011·Application pending·0 cites
- 1345US2006215873A1Electroacoustic transducerHANSEN KAJ B·Filed 2006·Application pending·0 cites
- 1444US2004184623A1Speaker unit with active leak compensationFiled 2004·Application pending·0 cites
- 1543US2004087346A1Mobile handset and assembly having multi-loudspeaker systemFiled 2003·Application pending·0 cites
- 1642US2003174856A1Flexible diaphragm with integrated coilFiled 2003·Application pending·0 cites
- 1741US2003048911A1Miniature speaker with integrated signal processing electronicsFiled 2002·Application pending·0 cites
- 1838US2011064260A1Insert molded suspension member with mechanical supportPULSE HVT APS·Filed 2010·Application pending·0 cites
- 1930US2007237352A1Miniature loudspeaker and magnetic circuit having integrated air flow passageANDERSEN MORTEN K·Filed 2007·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →