Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4727928 | Process for the preparation of refined tantalum or niobium | Pierre D. E. De Backer | 1988-03-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4727928 | Process for the preparation of refined tantalum or niobium | Pierre D. E. De Backer | 1988-03-01 |