Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6767374 | Fuel oil additives and compositions | Dhanesh G. Goberdhan, Robert D. Tack, Kenneth Lewtas, Lewis J. Fetters, John Huang | 2004-07-27 |
| 5674300 | Fuel oil additives and compositions | Gerald Peter Yearwood | 1997-10-07 |
| 5525128 | Fuel oil additives and compositions | Gerald Peter Yearwood | 1996-06-11 |