Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Spark control system for an engine

Spark control system for an engine

US Patent 4690124 · Granted Sep 1, 1987

Estimated economic value: $17,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Fuel cell vehicle2022
Fuel combustion control apparatus for an engine1990
Fuel octane responsive internal combustion engine ignition system1986
Automatic control system for method and apparatus for checking devices of an aut1984
Computer monitoring system for indicating abnormalities in execution of main or 1983
Electronic engine control system with checking unit for sensors and actuators th1983
Electronic fuel injection control system for an internal combustion engine1983
Idling speed controlling system for an internal combustion engine1983
Fail-safe control computer1982
Automatic control system for method and apparatus for checking devices of an aut1982
Load dependent fuel injection control system1982
Computer-controlled exhaust gas recirculation system for internal combustion eng1981