Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5019132 | Process for the preparation of concentrated 1:2 metal complex dye preparations | Charles R. Wetzel | 1991-05-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5019132 | Process for the preparation of concentrated 1:2 metal complex dye preparations | Charles R. Wetzel | 1991-05-28 |