Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9315758 | Lubricating oil compositions | Kam-Sik Ng | 2016-04-19 |
| 9150811 | Method for improving copper corrosion performance | Kenneth D. Nelson, Kam-Sik Ng, Paula S. Rogers | 2015-10-06 |
| 9062273 | Lubricating oil compositions containing titanium complexes | Gaurav Bhalla, Man Hon Tsang | 2015-06-23 |
| 8993496 | Method for improving fluorocarbon elastomer seal compatibility | Kenneth D. Nelson, Kam-Sik Ng, Paula S. Rogers | 2015-03-31 |
| 8969265 | Lubricating oil compositions | Gaurav Bhalla, Man Hon Tsang | 2015-03-03 |
| 8933001 | Method for improving fluorocarbon elastomer seal compatibility | Kenneth D. Nelson, Kam-Sik Ng, Paula S. Rogers | 2015-01-13 |
| 8901050 | Method for improving copper corrosion performance | Kenneth D. Nelson, Kam-Sik Ng, Paula S. Rogers | 2014-12-02 |
| 8716202 | Method for improving fluorocarbon elastomer seal compatibility | Man Hon Tsang | 2014-05-06 |
| 8709984 | Lubricating oil compositions | Gaurav Bhalla, Man Hon Tsang | 2014-04-29 |
| 8153566 | Lubricating oil compositions | Kam-Sik Ng | 2012-04-10 |
| 8084404 | Crankcase lubricating oil composition for protection of silver bearings in locomotive diesel engines | Melanie F. Tobias, Kenneth D. Nelson, Vernon R. Small, Jr. | 2011-12-27 |
| 8067346 | Tetraoxy-silane lubricating oil compositions | Kam-Sik Ng | 2011-11-29 |
| 7867960 | Method for forming tetraoxy-silane derived antiwear films and lubricating oil compositions therefrom | Kam-Sik Ng | 2011-01-11 |
| 6001779 | Lubricating oil composition having an ashless wear inhibitor | — | 1999-12-14 |
| 5728656 | Lower-ash lubricating oil having ultra-neutral zinc dialkyldithiophosphates | William R. Ruhe, Jr. | 1998-03-17 |
| 4729848 | Metal salts of alkyl catechol dithiophosphoric acids and oil compositions containing the salts | Thomas V. Liston | 1988-03-08 |
| 4668409 | Lubricating oil compositions containing overbased calcium sulfonates and metal salts of alkyl catechol dithiophosphoric acid | Thomas V. Liston | 1987-05-26 |
| 4487704 | Lubricating oil compositions containing an overbased calcium sulfonate and a zinc cyclic hydrocarbyl dithiophosphate-succinimide complex | Thomas V. Liston | 1984-12-11 |
| 4483775 | Lubricating oil compositions containing overbased calcium sulfonates | — | 1984-11-20 |
| 4443360 | Oil-soluble zinc cyclic hydrocarbyl dithiophosphate-succinimide complex and lubricating oil compositions containing same | Thomas V. Liston | 1984-04-17 |
| 4436640 | Glycolate dithiophosphoric acids, metal salts thereof and oil compositions containing the salts | — | 1984-03-13 |
| 4306984 | Oil soluble metal (lower) dialkyl dithiophosphate succinimide complex and lubricating oil compositions containing same | — | 1981-12-22 |