Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4846984 | Lubricant additives derived from aminomercaptothiadiazole and lubricant compositions containing same | Robert H. Davis, Alfred B. Piotrowski | 1989-07-11 |
| 4814097 | Reaction products of dialkyl phosphites with elemental sulfur, alkylene oxide compositions containing same, and their use in lubricant compositions | — | 1989-03-21 |