Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9909011 | Method for coating the surface of inorganic solid particles, especially titanium dioxide pigment particles | Heiko Frahm, Joerg Friedrich, Mark Kaminski, Erwin Schmeier, Volker Juergens | 2018-03-06 |
| 7988780 | Titanium dioxide pigment particles with doped, dense SiO2 skin and methods for their manufacture | Siegfried Bluemel | 2011-08-02 |
| 7905953 | Titanium dioxide pigment particles with doped, dense SiO2 skin and methods for their manufacture | Siegfried Bluemel | 2011-03-15 |
| 7842131 | High opacity TiO2 pigment and production method | Siegfried Blumel, Volker Jürgens, Volker Schmitt | 2010-11-30 |
| 7763110 | Titanium dioxide pigment particles with doped, dense SiO2 skin and methods for their manufacture | Siegfried Bluemel | 2010-07-27 |
| 7682441 | Weather resistant titanium dioxide pigment and a process for its production | Siegfried Bluemel | 2010-03-23 |
| 7166157 | Method for the surface treatment of a titanium dioxide pigment | Siegfried Bluemel, Lothar Elfenthal, Volker Schmitt | 2007-01-23 |
| 7147702 | Method for the surface treatment of a titanium dioxide pigment | Siegfried Bluemel, Volker Jürgens, Volker Schmitt | 2006-12-12 |
| 7135065 | Method for the post-treatment of titanium dioxide pigments | Siegfried Bluemel | 2006-11-14 |