Inventor · disambiguated record
Bernd Kalkhof
Also filed as: KALKHOF BERND · KALKHOF BERND W
7 granted patents·76 citations·filing 1978–1990
83Inventor score
Files withBOSCH GMBH ROBERT7
Top patents by PatentIndex Score
7 records- 0179US4567537ATransistor-controlled-load, short-circuit-protected current-supply circuitBOSCH GMBH ROBERT·Filed 1983·Granted Jan 28, 1986·24 cites·8 claims
- 0275US4652144ATemperature sensing semiconductor circuitBOSCH GMBH ROBERT·Filed 1985·Granted Mar 24, 1987·38 cites·10 claims
- 0342US4253442AIgnition system with improved temperature and voltage compensationBOSCH GMBH ROBERT·Filed 1979·Granted Mar 3, 1981·4 cites·11 claims
- 0435US4976247AIgnition device for combustion enginesBOSCH GMBH ROBERT·Filed 1990·Granted Dec 11, 1990·4 cites·20 claims
- 0533US4448180AIgnition system for an internal combustion engineBOSCH GMBH ROBERT·Filed 1982·Granted May 15, 1984·4 cites·3 claims
- 0633US4153031AApparatus for preventing sparks in the ignition system of an engine while the engine is at restBOSCH GMBH ROBERT·Filed 1978·Granted May 8, 1979·2 cites·5 claims
- 0719US4595968AElectronic final stage for switching electro-magnetic valve with the assistance of controlled current sourceBOSCH GMBH ROBERT·Filed 1985·Granted Jun 17, 1986·0 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →