Issued Patents 1994
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5340910 | Process for preparing 1-cyano-3H-dibenz[f,ij]isoquinoline-2,7-diones and their use as toners for polyesters | Wayne P. Pruett, Max A. Weaver, Samuel D. Hilbert, Donna Rice Quillen, Preston K. Salyer | 1994-08-23 |