Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4576649 | Color enhanced permanent pigments from precipitated cationic dyes | Vincent S. Oliver, Walter Tames, Karl-Heinz Wieser | 1986-03-18 |
| 4190417 | Process for dyeing and printing sheets | Gert Baumann, Peter Rasche, Heinz Muller, Alberto Gonzales-Dorner | 1980-02-26 |