Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4834893 | Substituted phosphorodithioates and their metal salts as multifunctional additives | John P. Doner, Andrew G. Horodysky | 1989-05-30 |
| 4828733 | Copper salts of hindered phenolic carboxylates and lubricants and fuels containing same | — | 1989-05-09 |
| 4828740 | Mixed hydroquinone-hydroxyester borates as antioxidants | Andrew G. Horodysky | 1989-05-09 |
| 4820430 | Copper salts of thiodipropionic acid derivatives as antioxidant additives and lubricant compositions thereof | Andrew G. Horodysky | 1989-04-11 |