Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6467469 | EGR valve position control system | Chang Yang, Gregory R. White, Robert S. Henrich, Yue Wang, John M. Janssen | 2002-10-22 |
| 6082322 | Electronically controlled continuous lubricating oil replacement system | John P. Graham, Jerry C. Wang, Leslie A. Roettgen, Donald P. Carver, Colin I. Black +1 more | 2000-07-04 |
| 6065448 | Dual throttle control to a single throttle input | Dennis O. Taylor, Eric A. Pyers, David Clark | 2000-05-23 |
| 5970942 | Electronically controlled continuous lubricating oil replacement system | David E. Koeberlein, Paul D. Cantrell, Eric S. Keith, John P. Graham, Jerry C. Wang +4 more | 1999-10-26 |
| 5881688 | Electronically controlled continuous lubricating oil replacement system | John P. Graham, Jerry C. Wang, Leslie A. Roettgen, Donald P. Carver, Colin I. Black +1 more | 1999-03-16 |
| 5749339 | Electronically controlled continuous lubricating oil replacement system | John P. Graham, Jerry C. Wang, Leslie A. Roettgen, Donald P. Carver, Colin I. Black +1 more | 1998-05-12 |
| 4914418 | Outbound detector system and method | Sioe T. Mak, David S. Takach | 1990-04-03 |