Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4617380 | Process for the preparation of concentrated stable liquid dye solutions of CI Direct Yellow 11 utilizing an extended surface silica filter aid during a desalting procedure | James W. Hinson | 1986-10-14 |
| 4617381 | Process for the preparation of concentrated stable liquid dye solutions of CI Direct Yellow 11 utilizing an alkanol/water solvent in a desalting procedure | James W. Hinson | 1986-10-14 |
| 4502864 | Crown ether complexes of direct yellow 11 and dyestuff containing same | — | 1985-03-05 |