Inventor · disambiguated record
Justin Kramer
Also filed as: KRAMER JUSTIN · KRAMER JUSTIN A
9 granted patents·139 citations·filing 1976–1993
89Inventor score
Top patents by PatentIndex Score
9 records- 0181US4097905ATape player time signalKRAMER JUSTIN·Filed 1976·Granted Jun 27, 1978·21 cites·11 claims
- 0278US4205354AMusic director systemKRAMER JUSTIN·Filed 1978·Granted May 27, 1980·21 cites·8 claims
- 0373US4385841ADigital program control clockKRAMER JUSTIN·Filed 1980·Granted May 31, 1983·27 cites·18 claims
- 0464US4174019ADual speakerKRAMER JUSTIN A·Filed 1978·Granted Nov 13, 1979·21 cites·9 claims
- 0557US4851800AElectrical stop control for musical instruments and action magnet thereforPETERSON RICHARD H·Filed 1988·Granted Jul 25, 1989·16 cites·19 claims
- 0655US4677892AElectrical actuator for percussion instrumentsKRAMER JUSTIN·Filed 1985·Granted Jul 7, 1987·15 cites·17 claims
- 0748US5370029AElectromagnetically operated valveFiled 1993·Granted Dec 6, 1994·11 cites·20 claims
- 0841US4290334AElectronic wave sharing synthetic sound systemKRAMER JUSTIN·Filed 1980·Granted Sep 22, 1981·4 cites·16 claims
- 0932US4726277AElectrical stop control for musical instrumentsPETERSON RICHARD H·Filed 1986·Granted Feb 23, 1988·3 cites·23 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →