Assignee
ELECTRO VOICE
US·29 granted patents·1,232 citations·filing 1975–1989
Top patents by PatentIndex Score
29 records- 0192US4717889APower control system for periodically and selectively energizing or shorting primary windings of transformers for controlling the output voltage across a common secondary windingELECTRO VOICE·Filed 1986·Granted Jan 5, 1988·52 cites·19 claims
- 0291US4071112AHorn loudspeakerELECTRO VOICE·Filed 1975·Granted Jan 31, 1978·62 cites·17 claims
- 0386US4923031AHigh output loudspeaker systemELECTRO VOICE·Filed 1986·Granted May 8, 1990·98 cites·9 claims
- 0485US4673888APower control systemELECTRO VOICE·Filed 1986·Granted Jun 16, 1987·81 cites·17 claims
- 0585US4194096AMicrophone shock mount and assemblyELECTRO VOICE·Filed 1978·Granted Mar 18, 1980·96 cites·10 claims
- 0684US4685532AConstant directivity loudspeaker hornELECTRO VOICE·Filed 1986·Granted Aug 11, 1987·59 cites·15 claims
- 0783US4733749AHigh output loudspeaker for low frequency reproductionELECTRO VOICE·Filed 1986·Granted Mar 29, 1988·89 cites·15 claims
- 0882US4258235APressure gradient electret microphoneELECTRO VOICE·Filed 1978·Granted Mar 24, 1981·45 cites·9 claims
- 0979US4933975ADynamic loudspeaker for producing high audio powerELECTRO VOICE·Filed 1988·Granted Jun 12, 1990·66 cites·16 claims
- 1075US5020630ALoudspeaker and horn thereforELECTRO VOICE·Filed 1989·Granted Jun 4, 1991·61 cites·20 claims
- 1175US4567608AMicrophone for use on locationELECTRO VOICE·Filed 1984·Granted Jan 28, 1986·53 cites·8 claims
- 1273US4775766ATapped transformer/switch assemblyELECTRO VOICE·Filed 1987·Granted Oct 4, 1988·23 cites·20 claims
- 1373US3944756AElectret microphoneELECTRO VOICE·Filed 1975·Granted Mar 16, 1976·48 cites·12 claims
- 1472US4401859ADirectional microphone with high frequency selective acoustic lensELECTRO VOICE·Filed 1981·Granted Aug 30, 1983·40 cites·7 claims
- 1565US4716353ABattery chargerELECTRO VOICE·Filed 1986·Granted Dec 29, 1987·39 cites·14 claims
- 1665US4410770ADirectional microphoneELECTRO VOICE·Filed 1981·Granted Oct 18, 1983·45 cites·7 claims
- 1764US4685137AMicrophone with non-symmetrical directivity patternELECTRO VOICE·Filed 1985·Granted Aug 4, 1987·37 cites·11 claims
- 1863US4718517ALoudspeaker and acoustic transformer thereforELECTRO VOICE·Filed 1986·Granted Jan 12, 1988·35 cites·13 claims
- 1962US4629029AMultiple driver manifoldELECTRO VOICE·Filed 1985·Granted Dec 16, 1986·37 cites·20 claims
- 2061US4525604AHorn loudspeaker with convex diaphragmELECTRO VOICE·Filed 1983·Granted Jun 25, 1985·29 cites·10 claims
- 2158US4547632ADynamic loudspeakerELECTRO VOICE·Filed 1984·Granted Oct 15, 1985·22 cites·7 claims
- 2254US4593405ALoudspeaker system with combination crossover and equalizerELECTRO VOICE·Filed 1984·Granted Jun 3, 1986·23 cites·9 claims
- 2354US4151378AElectrostatic microphone with damping to improve omnidirectionality, flatten frequency response, reduce wind noiseELECTRO VOICE·Filed 1978·Granted Apr 24, 1979·17 cites·7 claims
- 2453US4984278AAdjustable mount for a loudspeakerELECTRO VOICE·Filed 1988·Granted Jan 8, 1991·27 cites·17 claims
- 2548US4779035AEnd of charge detectorELECTRO VOICE·Filed 1986·Granted Oct 18, 1988·20 cites·10 claims
- 2635US4646873AMicrophone and acoustic equalizer thereforELECTRO VOICE·Filed 1986·Granted Mar 3, 1987·9 cites·5 claims
- 2735US4624338ALoudspeaker enclosure for a vibrating diaphragm loudspeakerELECTRO VOICE·Filed 1985·Granted Nov 25, 1986·16 cites·7 claims
- 2832US4824715AEngraving process and product thereofELECTRO VOICE·Filed 1988·Granted Apr 25, 1989·2 cites·12 claims
- 2930US4745020AEngraved plastic articleELECTRO VOICE·Filed 1986·Granted May 17, 1988·1 cites·9 claims
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