Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5739089 | Dihydrocarbyl dithiophosphates | — | 1998-04-14 |
| 5703262 | Process for the preparation of dithiophosphoric acids | Philip Skinner, John Derek Woollins, Paul Thomas Wood | 1997-12-30 |
| 5558805 | Lubricating compositions | Morton Beltzer, Jacob J. Habeeb | 1996-09-24 |
| 5232614 | Lubricating oil compositions and additives for use therein | Andrew Ritchie | 1993-08-03 |
| 5064886 | Dithiophosphonates, their preparation and use as anti-oxidants | Stanley J. Brois | 1991-11-12 |
| 5013465 | Dithiophosphates | — | 1991-05-07 |
| 4900852 | Heavy metal salts of dithiophosphonate compounds | Stanley J. Brois | 1990-02-13 |
| 4867890 | Lubricating oil compositions containing ashless dispersant, zinc dihydrocarbyldithiophosphate, metal detergent and a copper compound | Frederick A. Gibson, John F. Marsh | 1989-09-19 |
| 4859353 | Sulphur-containing borate esters | — | 1989-08-22 |