Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5697342 | Hydraulically-actuated fuel injector with direct control needle valve | Michael D. Anderson, Gregory W. Hefler, Dale C. Maley, Ronald D. Shinogle, Mark F. Sommars | 1997-12-16 |
| 5669355 | Hydraulically-actuated fuel injector with direct control needle valve | Gregory W. Hefler | 1997-09-23 |
| 5628293 | Electronically-controlled fluid injector system having pre-injection pressurizable fluid storage chamber and direct-operated check | Gregory W. Hefler, Ronald D. Shinogle, Mark F. Sommars, Howard N. Cannon | 1997-05-13 |