| Patents for F02P 5 - Advancing or retarding electric ignition spark; Control therefor (9,022) |
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| 03/09/1976 | US3942492 Centrifugal ignition advancer device for an ignition system of an internal combustion engine |
| 03/09/1976 | US3942491 Electronic ignition system for internal combustion engine |
| 03/09/1976 | US3942359 Method and apparatus for measuring knocking in internal combustion engines |
| 03/02/1976 | US3942002 Signal combining circuits |
| 03/02/1976 | US3941103 Method and apparatus for changing the spark advance of internal combustion engines |
| 02/24/1976 | US3939948 Brake controlled ignition retarder |
| 02/24/1976 | US3939812 Vacuum advance regulating valve |
| 02/24/1976 | US3939811 Ignition apparatus for internal combustion engine |
| 02/24/1976 | US3939810 Engine speed responsive means for changing the position of a vacuum spark advance limiter stop |
| 02/17/1976 | US3938485 Ignition system for an internal combustion engine |
| 02/17/1976 | US3938329 Exhaust gas detoxication system for a motor vehicle combustion engine |
| 02/10/1976 | US3937190 Ignition timing controller for a breakerless ignition system |
| 02/03/1976 | US3936663 Signal averaging circuit |
| 02/03/1976 | US3935846 Installation for the digital-electronic control of inlet, exhaustion and injection valves as well as of the injection in internal combustion engines |
| 02/03/1976 | US3935845 Ignition timing control device for automotive ignition system |
| 02/03/1976 | US3935844 Ignition timing control system |
| 02/03/1976 | US3935843 Nonlinear vacuum spark advance system |
| 01/27/1976 | US3934563 Speed-dependent ignition angle control |
| 01/20/1976 | US3933166 Altitude compensated vacuum regulating valve |
| 01/20/1976 | US3933141 Zero crossing circuit for electronic ignition system |
| 01/20/1976 | US3933139 Capacitive discharge ignition system |
| 01/06/1976 | US3930474 Ignition system for internal combustion engines |