Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6022405 | Process for preparing colored mineral powders by thermal treatment | — | 2000-02-08 |
| 6007616 | Process for preparing colored mineral powders by irradiation | — | 1999-12-28 |
| 6007617 | System of colored mineral powders and its application in modern architectural materials | — | 1999-12-28 |
| 5931998 | Process for preparing colored mineral powders by chemical treatment | — | 1999-08-03 |
| 5908499 | Colored powders prepared by a combination of two thermal, chemical or irradiation processes | — | 1999-06-01 |