Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4431625 | Production of chromium trioxide | Michael A. Marshall | 1984-02-14 |
| 4296076 | Chromic oxide production | Michael A. Marshall | 1981-10-20 |
| 4291000 | Process for the production of chromium trioxide | Michael A. Marshall | 1981-09-22 |