Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7788939 | Azeotrope spray cooling system | Charles L. Tilton, Donald E. Tilton, Angela R. Maehren, Philip W. Appel, Randall T. Palmer | 2010-09-07 |
| 7679234 | Spray cool means for cooling a modular inverter electric motor system | Charles L. Tilton, Tom D. Weir | 2010-03-16 |
| 7643910 | Spray chamber valve control system | William C. Gustafson, Jeffery Weiler | 2010-01-05 |
| 7019337 | Power semiconductor switching devices, power converters, integrated circuit assemblies, integrated circuitry, power current switching methods, methods of forming a power semiconductor switching device, power conversion methods, power semiconductor switching device packaging methods, and methods of forming a power transistor | Richard C. Eden | 2006-03-28 |
| 6737301 | POWER SEMICONDUCTOR SWITCHING DEVICES, POWER CONVERTERS, INTEGRATED CIRCUIT ASSEMBLIES, INTEGRATED CIRCUITRY, POWER CURRENT SWITCHING METHODS, METHODS OF FORMING A POWER SEMICONDUCTOR SWITCHING DEVICE, POWER CONVERSION METHODS, POWER SEMICONDUCTOR SWITCHING DEVICE PACKAGING METHODS, AND METHODS OF FORMING A POWER TRANSISTOR | Richard C. Eden | 2004-05-18 |
| 6710441 | POWER SEMICONDUCTOR SWITCHING DEVICES, POWER CONVERTERS, INTEGRATED CIRCUIT ASSEMBLIES, INTEGRATED CIRCUITRY, POWER CURRENT SWITCHING METHODS, METHODS OF FORMING A POWER SEMICONDUCTOR SWITCHING DEVICE, POWER CONVERSION METHODS, POWER SEMICONDUCTOR SWITCHING DEVICE PACKAGING METHODS, AND METHODS OF FORMING A POWER TRANSISTOR | Richard C. Eden | 2004-03-23 |
| 6447270 | Brushless coolant pump and cooling system | Robert Schmidt, Thomas T. Weir | 2002-09-10 |
| 6104610 | EMI shielding fluid control apparatus | Charles L. Tilton | 2000-08-15 |
| 5842137 | Subscriber unit for wireless digital telephone system | David N. Critchlow, Graham M. Avis, Sandra J. K. Earlam, Karle J. Johnson, Gregory L. Westling +2 more | 1998-11-24 |
| 5719444 | Packaging and cooling system for power semi-conductor | Charles L. Tilton, Donald E. Tilton | 1998-02-17 |
| 5713327 | Liquid fuel injection device with pressure-swirl atomizers | Charles L. Tilton, Donald E. Tilton | 1998-02-03 |
| 5177741 | Subscriber unit for wireless digital telephone system | David N. Critchlow, Graham Avis, Sandra J. K. Earlam, Karle J. Johnson, Gregory L. Westling +2 more | 1993-01-05 |
| 5168507 | Automatic adaptive equalizer | David N. Critchlow, Graham M. Avis, Sandra J. K. Earlam, Karle J. Johnson, Gregory L. Westling +2 more | 1992-12-01 |
| 5159705 | Frequency synthesizer circuit | David N. Critchlow, Graham M. Avis, Sandra J. K. Earlam, Karle J. Johnson | 1992-10-27 |
| 5101418 | Digital time-multiplexed quadrature frequency upconverter | David N. Critchlow, Graham M. Avis, Sandra J. K. Earlam, Karle J. Johnson, Gregory L. Westling +2 more | 1992-03-31 |
| 5067141 | Interpolator for varying a signal sampling rate | David N. Critchlow, Graham M. Avis, Sandra J. K. Earlam, Karle J. Johnson, Gregory L. Westling +2 more | 1991-11-19 |
| 4996697 | Deglitching means for digital communication systems | David N. Critchlow, Graham M. Avis, Sandra J. K. Earlam, Karle J. Johnson, Gregory L. Westling +2 more | 1991-02-26 |
| 4994802 | Subscriber unit for wireless digital telephone system | David N. Critchlow, Graham M. Avis, Sandra J. K. Earlam, Karle J. Johnson, Gregory L. Westling +2 more | 1991-02-19 |
| 4893317 | Digital signals and frequency correction in a digital wireless system | David N. Critchlow, Graham M. Avis, Sandra J. K. Earlam, Karle J. Johnson, Gregory L. Westling +2 more | 1990-01-09 |
| 4881240 | AM equalizer circuit for digital systems | David N. Critchlow, Graham M. Avis, Sandra J. K. Earlam, Karle J. Johnson, Gregory L. Westling +2 more | 1989-11-14 |
| 4825448 | Subscriber unit for wireless digital telephone system | David N. Critchlow, Graham M. Avis, Sandra J. K. Earlam, Karle J. Johnson, Gregory L. Westling | 1989-04-25 |