Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6941743 | Lean burn emissions system protectant composition and method | Joseph W. Roos, Herbert M. Scull | 2005-09-13 |
| 6629407 | Lean burn emissions system protectant composition and method | Joseph W. Roos, Herbert M. Scull | 2003-10-07 |