Assignee
MODAFFERI ACOUSTICAL SYSTEMS
US·4 granted patents·115 citations·filing 1981–2003
Top patents by PatentIndex Score
4 records- 0173US4771466AMultidriver loudspeaker apparatus with improved crossover filter circuitsMODAFFERI ACOUSTICAL SYSTEMS·Filed 1987·Granted Sep 13, 1988·63 cites·6 claims
- 0262US4403112APhase shift low frequency loudspeaker systemMODAFFERI ACOUSTICAL SYSTEMS·Filed 1981·Granted Sep 6, 1983·31 cites·28 claims
- 0360US4918394AAudio frequency power amplifier with improved circuit topologyMODAFFERI ACOUSTICAL SYSTEMS·Filed 1989·Granted Apr 17, 1990·14 cites·13 claims
- 0457US7085389B1Infinite slope loudspeaker crossover filterMODAFFERI ACOUSTICAL SYSTEMS·Filed 2003·Granted Aug 1, 2006·7 cites·11 claims
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