Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7033979 | Composition for engine cleaning | Mark Herwig, Mark Rechtsteiner, Roy F. Thornton | 2006-04-25 |
| 6537384 | Composition and method for engine cleaning | Mark Herwig, Mark Rechtsteiner, Roy F. Thornton | 2003-03-25 |