| 10539378 |
Heat exchanger |
Jacob Diffey, James Green, Chris McNab |
2020-01-21 |
| RE35461 |
Lubricating oil additives |
Joseph M. Swietlik |
1997-02-25 |
| 5534168 |
Preparation of overbased magnesium sulphonates |
John A. Cleverley, Robert A. Wardle, Joseph M. Swietlik, Jeremy Spencer |
1996-07-09 |
| 5137648 |
Overbased metal sulphonate composition |
Marc Vernet, Graham W. Hamey |
1992-08-11 |
| 5112506 |
Overbased metal sulphonate composition |
Marc Vernet, Graham W. Hamey |
1992-05-12 |
| 5089155 |
Overbased magnesium sulphonate composition |
Marc Vernet, Graham W. Hamey |
1992-02-18 |
| 5069804 |
Lubricating oil additives |
Joseph M. Swietlik |
1991-12-03 |
| 4957642 |
Magnesium phenate detergents |
John A. Cleverley, Philip Skinner, Gaynor M. Miasik |
1990-09-18 |
| 4867890 |
Lubricating oil compositions containing ashless dispersant, zinc dihydrocarbyldithiophosphate, metal detergent and a copper compound |
Terence Colclough, Frederick A. Gibson |
1989-09-19 |
| 4839094 |
Overbased alkali metal additives |
John A. Cleverley |
1989-06-13 |
| 4617954 |
Valve assemblies |
Nigel J. Petts |
1986-10-21 |
| 4557872 |
Basic alkaline earth metal sulphonates |
John A. Cleverley, Dennis J. Simpkin |
1985-12-10 |