Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4810399 | Aminomethyl derivatives of benzothiazolinethione as lubricant additives | Emyr Phillips | 1989-03-07 |
| 4803001 | Aminomethyl derivatives of benzothiazolinethione as lubricant additives | Emyr Phillips | 1989-02-07 |