Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10689505 | Microspheres | Ulrich QUITTMANN, Hans-Juergen Brehm | 2020-06-23 |
| 8647429 | Effect pigments | Sabine Melson, Ulrich Schoenefeld | 2014-02-11 |
| 8613800 | Pigment preparations | Hans Jurgen Brehm | 2013-12-24 |
| 5167708 | Process for the preparation of pigments containing Cr.sub.2 O.sub.3 | Dieter Messer | 1992-12-01 |
| 4985078 | Thermostable zinc ferrite color pigments containing 0.05-0.5 wt % lithium, a process for their preparation and their use | Jakob Rademachers, Siegfried Keifer, Wilfried Burow | 1991-01-15 |
| 4919723 | Rutile mixed phase pigments with improved coloristic properties | Manfred Mansmann | 1990-04-24 |
| 4919726 | Process for the production of rutile mixed-phase pigments | Jakob Rademachers | 1990-04-24 |
| 4450012 | Flocculation-resistant, mixed phase pigments having a rutile structure, process for their preparation, and their use | Dieter Messer, Robert Endres, Heinrich Heine | 1984-05-22 |