Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5681798 | Load-carrying additives based on organo-phosphites and amine phosphates | Liehpao O. Farng | 1997-10-28 |
| 5362411 | Antirust/dispersant additive for lubricants | Raymond John Bergstra, Andreas Logothetis, Shi-Ming Wu | 1994-11-08 |
| 5288418 | Amine-coupled hindered phenols and phosphites as multifunctional antioxidant/antiwear additives | Liehpao O. Farng, Andrew G. Horodysky | 1994-02-22 |
| 5252237 | Complex alkoxy borates of alkylated phenols as lubricant stabilizers | Harry J. Andress, Henry Ashjian, Robert E. Ernhoffer | 1993-10-12 |
| 5137649 | Mixed alcohol/dimercaptothiadiazole-derived hydroxy borates as antioxidant/antiwear multifunctional additives | Liehpao O. Farng, Andrew G. Horodysky | 1992-08-11 |
| 5135670 | Sulfurized olefin extreme pressure/antiwear additives and compositions thereof | Douglas E. Johnson, Andrew G. Horodysky | 1992-08-04 |
| 4906393 | Mixed phenol/dimercaptothiadiazole-derived hydroxythioether borates as antioxidant/antiwear multifunctional additives | Liehpao O. Farng, Andrew G. Horodysky | 1990-03-06 |