Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6734231 | Easily distributable pigment compositions | Gerardus Lambertus Creusen, Robertus Hermans, Nico Adelin Valentin Roox | 2004-05-11 |
| 6444025 | Red-tinged bismuth vanadate pigments | Gregor Schmitt, Hendrikus Maria Anna Hamers, Johannes Maria Martinus Luijten, Jozef Gertruda Emanuel Mains, Helena Francisca Maria Schulpen-Vleugels | 2002-09-03 |
| 5976238 | Bismuth vanadate pigment powder mixtures | Gregor Schmitt, Hendrikus Maria Anna Hamers, Johannes Maria Martinus Luijten, Jozef Gertruda Emanuel Mains | 1999-11-02 |
| 5853472 | Transparent bismuth vanadate pigments | Gregor Schmitt, Hendrikus Maria Anna Hamers, Johannes Maria Martinus Luijten, Jozef Gertruda Emanuel Mains | 1998-12-29 |
| 5186748 | Process for the preparation of bismuth vanadate pigments, and novel bismuth vanadate pigments of high color strength | Gregor Schmitt, Herman J. J. M. Geurts, Werner F. C. G. Corvers | 1993-02-16 |
| 5123965 | Process for stabilizing bismuth vanadate pigments against attack by hydrochloric acid | Fritz Herren | 1992-06-23 |
| 5007963 | Novel process for the preparation of lead molybdate pigments and novel lead molybdate pigments | Gerben P. Algra, Herman J. J. M. Geurts, Hubertus P. A. Gielkens | 1991-04-16 |
| 4921541 | Orthorhombic greenish-tinged lead chromate pigments | Herman J. J. M. Geurta, Jean L. G. M. Vandevenne, Gerben P. Algra | 1990-05-01 |
| 4872915 | Orthorhombic lead chromate pigments of greenish hue | Gerben P. Algra, Jacobus-Michiel-Hubertus Snijders, Herman J. J. M. Geurts, Andre Pugin | 1989-10-10 |