Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7851421 | Detergent additives for lubricating oil compositions | Robert W. Shaw, Simon Chung, James C. Dodd | 2010-12-14 |
| 7786060 | Lubricating oil additive concentrates | Ian Bell | 2010-08-31 |
| 6743757 | Dispersants and lubricating oil compositions containing same | Ian Bell, Jacob Emert, Antonio Gutierrez, Robert Robson | 2004-06-01 |
| 6734148 | Dispersants and lubricating oil compositions containing same | Ian Bell, Jacob Emert, Antonio Gutierrez, Robert Robson | 2004-05-11 |