Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5330571 | Inclusion pigments of zirconium silicate with included chromic oxide, a process for the preparation and use thereof | Dietrich Speer, Akos Kiss, Peter Kleinschmit, Jenny Horst | 1994-07-19 |
| 5252125 | Inclusion pigments of zirconium silicate formed with spinel inclusions, a process for the preparation and use thereof | Dietrich Speer, Akos Kiss, Peter Kleinschmit | 1993-10-12 |