Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6936460 | Microbial activation of layer silicates | Stefan Dick, Werner Zschau | 2005-08-30 |
| 6759359 | Processes for producing a bleaching clay product | David L. Hill, Jorge Bello | 2004-07-06 |
| 6569798 | Processes for producing a blended bleaching clay product and blended bleaching clay products produced by those processes | Jorge Bello | 2003-05-27 |
| 6489260 | Processes for producing a bleaching clay product and bleaching clay products produced by those processes | David L. Hill, Jorge Bello | 2002-12-03 |
| 6288003 | Processes for producing a bleaching clay product | Franz K. Kleindl | 2001-09-11 |