Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5207828 | Temperature-stable pigment-colored plastic compositions, process for producing them and means for conducting the process | Ingrid Ressler, Walter Horn, Donald G. Gray | 1993-05-04 |
| 4921540 | Corrosion inhibiting pigments based on zinc silicate their production and their use | Manfred Gawol | 1990-05-01 |
| 4840668 | Corrosion-inhibiting pigments, their production and use | Manfred Gawol | 1989-06-20 |
| 4762523 | Permanently non-dusting pigment and dye preparations, method for producing them, and measuring device therefore | Manfred Gawol | 1988-08-09 |
| 4702116 | Permanently non-dusting pigment and dye preparations, method for producing them, and measuring device therefor | Manfred Gawol | 1987-10-27 |
| 4400365 | Method for the manufacture of aluminum zinc phosphate hydrates or basic aluminum zinc phosphate hydrates | Wigo Haacke, Manfred Gawol, Rainer Henbach | 1983-08-23 |