Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5753028 | Ferriferous bismuth vanadate pigments | Harald Ochmann, Hansulrich Reisacher, Norbert Mronga, Gunter Etzrodt, Henning Wienand | 1998-05-19 |
| 5536309 | Bismuth vanadate pigments | Guenter Etzrodt, Hansulrich Reisacher | 1996-07-16 |
| 5273577 | Bismuth phosphovanadate pigments | Egon Liedek, Hans Ulrich Reisacher, Norbert Mronga, Harald Ochmann, Henning Wienand | 1993-12-28 |
| 4851049 | Thermostable bismuth vanadate/molybdate pigments | Henning Wienand, Werner Ostertag, Christoph Schwidetzky | 1989-07-25 |
| 4844741 | Thermostable rutile mixed phase pigments | Roland Bauer, Egon Liedek, Guenter Etzrodt | 1989-07-04 |
| 4530725 | Preparation of thermally stable lead chromate pigments | Werner Ostertag, Peter Dimroth, Henning Wienand, Egon Liedek, Gunter Etzrodt | 1985-07-23 |
| 4466867 | Production of blue iron hexacyanoferrate-III pigments | Wolfgang Habermann, Peter Hammes, Joachim Felger, Karl-Ludwig Hock, Friedrich Brunnmueller +3 more | 1984-08-21 |
| 4451339 | Preparation of blue iron hexacyanoferrate-III pigments, and the pigments obtained | Joachim Kranz, Wolfgang Habermann, Harry Distler, Karl-Ludwig Hock, Fritz Brunnmueller +1 more | 1984-05-29 |
| 4226634 | Process for preparing pigment compositions | Peter Dimroth, August Seitz, Dietrich Wolff | 1980-10-07 |