Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814448 | Process for preparing phosphorothioates and phosphates | Karl L. Krumel | 1989-03-21 |
| 4814451 | Process for preparing phosphorothioates and phosphates and phosphonothioates and phosphonates | — | 1989-03-21 |