Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4576649 | Color enhanced permanent pigments from precipitated cationic dyes | Walter Tames, Helmuth H. Prochaska, Karl-Heinz Wieser | 1986-03-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4576649 | Color enhanced permanent pigments from precipitated cationic dyes | Walter Tames, Helmuth H. Prochaska, Karl-Heinz Wieser | 1986-03-18 |