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Your search returned 77 patents.
( 123/406.21 in Current US Classification ) |
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| Patent ID | Title | Date Filed |
| 4699106 | Knock control system for internal combustion engines
| April 17, 1986 |
| 4693221 | Engine control system
| July 31, 1986 |
| 4690116 | System for controlling an internal combustion engine and method therefor
| September 17, 1986 |
| 4660535 | System and method for controlling ignition timing of an internal combustion engine
| June 27, 1985 |
| 4625692 | Apparatus for controlling ignition timing for internal combustion engine
| March 18, 1985 |
| 4612902 | Knocking control method and apparatus for internal combustion engine
| March 27, 1985 |
| 4574758 | Individual cylinder spark deration
| June 29, 1984 |
| 4565171 | Knock controller for an internal combustion engine
| June 22, 1983 |
| 4527526 | Ignition timing control system for internal combustion engine
| August 16, 1984 |
| 4512310 | Ignition timing control system for internal combustion engines
| September 29, 1982 |
| 4483295 | Control device for multicylinder engine
| March 17, 1983 |
| 4471736 | Ignition timing control system
| February 25, 1982 |
| 4445479 | Ignition timing control apparatus with knock sensor
| July 14, 1982 |
| 4413599 | Ignition timing control system in a spark ignition type internal combustion engine
| January 7, 1981 |
| 4388902 | Ignition timing device avoiding pinging during the functioning of an internal combustion engine
| December 19, 1980 |
| 4376429 | Adaptive cylinder by cylinder knock retard control
| June 23, 1981 |
| 4366792 | Angle of advance correction signal generator
| October 30, 1980 |
| 4331117 | System and method for controlling engine knock
| December 20, 1979 |
| 4300503 | Process and system for computation and adjustment of optimum ignition advance
| April 17, 1980 |
| 4289102 | Engine spark timing controlling device
| July 27, 1979 |
| 4282841 | Ignition timing control system for an internal combustion engine
| April 30, 1979 |
| 4243007 | Selective ignition timing
| March 26, 1979 |
| 4116173 | Internal combustion engine ignition system
| May 26, 1977 |
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