Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5131224 | Method for reducing methane exhaust emissions from natural gas fueled engines | Robert M. Siewert | 1992-07-21 |
| 4673556 | Method of simultaneous oxidation of carbon monoxide and unburned fuel in methanol vehicle exhaust | Robert Walter McCabe | 1987-06-16 |