Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6569820 | Manufacture of lubricant additives | Jonathan M. McConnachie, Ian Bell, Edward I. Stiefel, Stanley J. Brois, Ernestine W. Hill | 2003-05-27 |
| 6541429 | Lubricant compositions | Jonathan M. McConnachie, Ian Bell, Edward I. Stiefel, Ernestine W. Hill | 2003-04-01 |