Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4847420 | New hydroxy-thia-alkenes, and processes for their preparation and use | — | 1989-07-11 |
| 4827040 | Process of degradation of alkyl polysulphides into polysulphides having a lower sulphur content | Guy Desgrandchamps | 1989-05-02 |