Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6630018 | Colored and coated plateletlike pigments | Karl Osterried, Christoph Schmidt, Reiner Vogt, Helge Kniess, Michael Uhlig +2 more | 2003-10-07 |
| 6572448 | Combination blade sharpener and curved or straight edge blade | — | 2003-06-03 |
| 6500251 | Multi-coated interference pigments | Stephanie Andes, Gunter Brenner, Dieter Bruckner, Michael Schmelz, Andrea Heyland +3 more | 2002-12-31 |
| 6368196 | Blade sharpener for curved and straight edge blades | — | 2002-04-09 |
| 6364750 | Blade sharpener for curved and straight edge blades | — | 2002-04-02 |
| 6284032 | Multilayer interference pigments | Stephanie Andes, Gunter Brenner, Dieter Bruckner, Michael Schmelz, Andrea Heyland +3 more | 2001-09-04 |
| 6238472 | Metal oxide coated titanium dioxide lamellas | Stephanie Andes, Gunter Brenner, Dieter Bruckner, Michael Schmelz, Andrea Heyland +3 more | 2001-05-29 |
| 6156115 | Multilayer interference pigment with transparent central layer | Gerhard Pfaff, Martin Friz, Matthias Kuntz, Christina Schank | 2000-12-05 |
| 6132504 | Multilayer interference pigment with absorbent central layer | Matthias Kuntz, Gerhard Pfaff, Christina Schank | 2000-10-17 |
| 5858078 | Platelet-shaped titanium dioxide pigment | Stefanie Andes, Gunter Brenner, Dieter Bruckner, Andrea Heyland, Matthias Kuntz +3 more | 1999-01-12 |
| 5718906 | Light-stable cosmetic composition | Roland Martin, Ralf Emmert, Thekla Kurz, Ulrich Heywang | 1998-02-17 |
| 5574204 | Method for the mutual chemical and compaction treatment of inorganic wastes | Thomas Menzel, Joachim Beyer, Bernd Koglin, Rolf Rink | 1996-11-12 |
| 5536447 | Substrate-free conductive pigments | Gerhard Pfaff | 1996-07-16 |
| 5503015 | Blade balancer | — | 1996-04-02 |
| 5398550 | Blade balancer | — | 1995-03-21 |
| 5338772 | Implant material | Hans Bauer, Elvira Dingeldein, Helmut Wahlig | 1994-08-16 |
| 5219829 | Process and apparatus for the preparation of pulverulent metal oxides for ceramic compositions | Matthias Kuntz, Ingrid Grobelsek, Dirk Reyermann, Gunter Nimtz | 1993-06-15 |
| 5141511 | Resorptive bone ceramic on the basis of tricalcium phosphate | — | 1992-08-25 |
| 5133756 | Process for producing a bone replacement material | Freimut Vizethum | 1992-07-28 |
| 5108465 | Process and device for obtaining pure oxygen | Helmuth Krauss, Matthias Kuntz | 1992-04-28 |
| 4509979 | Method and apparatus for the treatment of iron with a reactant | — | 1985-04-09 |
| 4304343 | Hydraulic nose tilt pouring device | Donald Savatski | 1981-12-08 |