Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5217817 | Steel tool provided with a boron layer | Gerrit Verspui, Jacobus M. M. Verheijen | 1993-06-08 |
| 5164230 | Method of applying a boron layer to a steel substrate by a CVD process | Gerrit Verspui, Jacobus M. M. Verheijen | 1992-11-17 |