Issued Patents All Time
Showing 1–25 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6657847 | Method of using inductance for determining the position of an armature in an electromagnetic solenoid | Perry Robert Czimmek | 2003-12-02 |
| 6508418 | Contaminant tolerant compressed natural gas injector and method of directing gaseous fuel therethrough | James Fochtman, James H. Cohen | 2003-01-21 |
| 6476599 | Sensorless method to determine the static armature position in an electronically controlled solenoid device | Perry Robert Czimmek | 2002-11-05 |
| 6431474 | Compressed natural gas fuel injector having magnetic pole face flux director | James Fochtman | 2002-08-13 |
| 6422488 | Compressed natural gas injector having gaseous dampening for armature needle assembly during closing | James Fochtman, James H. Cohen | 2002-07-23 |
| 6392865 | High-speed dual-coil electromagnetic valve and method | James Fochtman | 2002-05-21 |
| 6367719 | Electromechanical valve driver circuit and method | — | 2002-04-09 |
| 6359435 | Method for determining magnetic characteristics of an electronically controlled solenoid | Perry Robert Czimmek | 2002-03-19 |
| 6285151 | Method of compensation for flux control of an electromechanical actuator | Perry Robert Czimmek | 2001-09-04 |
| 6176226 | Control method and apparatus for a heated tip injector | Jerry Edward Nines, Frank Zimmerman | 2001-01-23 |
| 6176207 | Electronically controlling the landing of an armature in an electromechanical actuator | Perry Robert Czimmek | 2001-01-23 |
| 6173915 | Gaseous fuel injector with thermally stable solenoid coil | James H. Cohen, James Fochtman | 2001-01-16 |
| 6128175 | Apparatus and method for electronically reducing the impact of an armature in a fuel injector | Perry Robert Czimmek | 2000-10-03 |
| 6119659 | Fuel injector having extended voltage range | — | 2000-09-19 |
| 6120005 | Dual coil fuel injector having smart electronic switch | — | 2000-09-19 |
| 6091314 | Piezoelectric booster for an electromagnetic actuator | Louis G. DeGrace | 2000-07-18 |
| 6089467 | Compressed natural gas injector with gaseous damping for armature needle assembly during opening | James Fochtman, James H. Cohen | 2000-07-18 |
| 6035837 | Bi-fuel liquid injection system for an internal combustion engine | Jim B. Cohen | 2000-03-14 |
| 5991143 | Method for controlling velocity of an armature of an electromagnetic actuator | Perry Robert Czimmek | 1999-11-23 |
| 5873335 | Engine valve actuation control system | James A. Nitkiewicz | 1999-02-23 |
| 5747684 | Method and apparatus for accurately determining opening and closing times for automotive fuel injectors | Jeffrey B. Pace, Vernon R. Warner | 1998-05-05 |
| 5507266 | Fuel pressure control using hysteresis pump drive | Russell J. Wakeman | 1996-04-16 |
| 5086740 | Engine electronic throttle control with cruise control feature | Kregg S. Wiggins | 1992-02-11 |
| 5065721 | Power supply circuit for dual throttle position sensors of an electronic engine throttle control | Kregg S. Wiggins | 1991-11-19 |
| 5050085 | Engine control microprocessor start-up circuit | — | 1991-09-17 |