Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6569821 | Overbased metal detergents | Tuncel Ibrahim, Phillip Skinner, Jane Galsworthy, Christopher Adams, Rudi ter Haar | 2003-05-27 |
| 6211123 | Lubricating oil compositions | Alisdair Brown, Ian Bell, Jose Manuel Gomes, Edward I. Stiefel, Jonathan M. McConnachie | 2001-04-03 |
| 6153564 | Lubricating oil compositions | Velautha-Cumaran Arunasalam, Ian Bell, Ronald P. Wangner | 2000-11-28 |
| 5922655 | Magnesium low rate number sulphonates | Dominique Moulin, Charles Herbert Bovington | 1999-07-13 |
| 5883056 | Magnesium low base number sulphonates | Dominique Moulin, Charles Herbert Bovington | 1999-03-16 |
| 5534168 | Preparation of overbased magnesium sulphonates | Robert A. Wardle, Joseph M. Swietlik, John F. Marsh, Jeremy Spencer | 1996-07-09 |
| 4957642 | Magnesium phenate detergents | John F. Marsh, Philip Skinner, Gaynor M. Miasik | 1990-09-18 |
| 4839094 | Overbased alkali metal additives | John F. Marsh | 1989-06-13 |
| 4797217 | Overbased additives | — | 1989-01-10 |
| 4557872 | Basic alkaline earth metal sulphonates | John F. Marsh, Dennis J. Simpkin | 1985-12-10 |