Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5230308 | Low mass direct acting hydraulic valve lifter | Daniel G. Gauthier, John J. Krieg, Michael Warden, Werner Herrmann, Richard K. Donoghue +1 more | 1993-07-27 |
DE
Donald G. Engel
Overall (All Time): #3,829,211 of 4,157,543Top 95%
1
Patents All Time