Issued Patents All Time
Showing 25 most recent of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8760215 | Threshold voltage based power transistor operation | — | 2014-06-24 |
| 7675346 | Switching control system to reduce coil output voltage when commencing coil charging | — | 2010-03-09 |
| 7511545 | Analog duty cycle replicating frequency converter for PWM signals | — | 2009-03-31 |
| 7159583 | Technique for drive current stabilization of an automotive ignition system | Duane E. Beyler | 2007-01-09 |
| 7013882 | Over-dwell protection circuit for an automotive ignition control system | Jerral Long, Raymond O. Butler, Jr. | 2006-03-21 |
| 6987655 | Thermal overload protection circuit for an automotive ignition system | Duane E. Beyler, John R. Fruth | 2006-01-17 |
| 6955164 | Automotive ignition system with sparkless thermal overload protection | John R. Fruth | 2005-10-18 |
| 6956410 | Automotive ignition system with battery dependent over-dwell protection | — | 2005-10-18 |
| 6920783 | Automotive ignition monitoring system with misfire and fouled plug detection | — | 2005-07-26 |
| 6906399 | Integrated circuit including semiconductor power device and electrically isolated thermal sensor | John R. Fruth | 2005-06-14 |
| 6741080 | Buffered ion sense current source in an ignition coil | Philip R. Peterson, Philip Allen Karau | 2004-05-25 |
| 6668811 | Ignition control circuit providing temperature and battery voltage compensated coil current control | — | 2003-12-30 |
| 6450157 | Automotive ignition system with adaptable start-of-dwell ring damping | John W. Boyer | 2002-09-17 |
| 6367318 | Multicharge ignition system having combustion feedback for termination | John W. Boyer, Raymond O. Butler, Jr., Daniel J. O'Connor | 2002-04-09 |
| 6369646 | Leakage current compensation circuit | Thomas L. Dinkledine | 2002-04-09 |
| 6360720 | High temperature compensation circuitry for an ignition control circuit | — | 2002-03-26 |
| 6304423 | Input protection circuit for a semiconductor device | Jerral Long, Michael Joseph Huemmer | 2001-10-16 |
| 6194884 | Circuitry for maintaining a substantially constant sense current to load current ratio through an electrical load driving device | Jerral Long | 2001-02-27 |
| 6130582 | Amplifier circuit including compensation circuitry for canceling variations in an amplifier feedback signal | — | 2000-10-10 |
| 6100728 | Coil current limiting feature for an ignition coil driver module | John Robert Shreve, Gregg N. Francisco | 2000-08-08 |
| 5910737 | Input buffer circuit with differential input thresholds operable with high common mode input voltages | — | 1999-06-08 |
| 5819713 | Automotive ignition control system | — | 1998-10-13 |
| 5611318 | Automotive ignition system lockup protection circuit | — | 1997-03-18 |
| 5184036 | Method of limiting output current from an interface drive circuit | Mark W. Gose | 1993-02-02 |
| 5139004 | Ignition system for a spark ignited internal combustion engine | Mark W. Gose | 1992-08-18 |