Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885393 | Novel s-butyl-di-n-alkyl phosphines, phosphine oxides and phosphine sulfides, and processes for making them | — | 1989-12-05 |
| 4885394 | Process for the preparation of tertiary phosphine oxides | Jurgen Svara | 1989-12-05 |