Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7553343 | Fuels compositions for direct injection gasoline engines containing manganese compounds | Allen A. Aradi, Joseph W. Roos, Michael W. Meffert | 2009-06-30 |
| 6941743 | Lean burn emissions system protectant composition and method | Joseph W. Roos, Martin J. Openshaw | 2005-09-13 |
| 6629407 | Lean burn emissions system protectant composition and method | Joseph W. Roos, Martin J. Openshaw | 2003-10-07 |
| 4925962 | Trimethylaluminum process | William R. Beard | 1990-05-15 |
| 4554141 | Gas stream purification | Sebastian M. Laurent | 1985-11-19 |