Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6294009 | Tantalum (V) nitride pigment, process for producing it and its use | Hans-Peter Letschert | 2001-09-25 |
| 6235103 | Tantalum (V) nitride pigments, process for the production thereof and use thereof | Hans-Peter Letschert | 2001-05-22 |