Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5375577 | Apparatus and method for controlling engine response versus exhaust smoke | Edward H. Betts, Jr., William A. Calliss, Phillip J. Houtz, Steven Swanson, Shawn J. Weck +1 more | 1994-12-27 |
| 5205261 | Air restriction derate for internal combustion engines | Edward H. Betts, Jr. | 1993-04-27 |