Inventor · disambiguated record
Richard Modafferi
Also filed as: MODAFFERI RICHARD · MODAFFERI RICHARD T
7 granted patents·141 citations·filing 1975–2019
86Inventor score
Top patents by PatentIndex Score
7 records- 0181US10701487B1Crossover for multi-driver loudspeakersMODAFFERI RICHARD·Filed 2019·Granted Jun 30, 2020·5 cites·6 claims
- 0273US4771466AMultidriver loudspeaker apparatus with improved crossover filter circuitsMODAFFERI ACOUSTICAL SYSTEMS·Filed 1987·Granted Sep 13, 1988·63 cites·6 claims
- 0363US9485043B1Quadrature modulation apparatus for AM stereo transmittersMODAFFERI RICHARD·Filed 2016·Granted Nov 1, 2016·1 cites·6 claims
- 0462US4403112APhase shift low frequency loudspeaker systemMODAFFERI ACOUSTICAL SYSTEMS·Filed 1981·Granted Sep 6, 1983·31 cites·28 claims
- 0560US4918394AAudio frequency power amplifier with improved circuit topologyMODAFFERI ACOUSTICAL SYSTEMS·Filed 1989·Granted Apr 17, 1990·14 cites·13 claims
- 0657US7085389B1Infinite slope loudspeaker crossover filterMODAFFERI ACOUSTICAL SYSTEMS·Filed 2003·Granted Aug 1, 2006·7 cites·11 claims
- 0748US3984635ALow range loudspeaker systemELECTRO ACOUSTICAL LABS INC·Filed 1975·Granted Oct 5, 1976·20 cites·15 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →