Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6667392 | Polymeric acetoacetanilide azo colorants | Jusong Xia, Eric B. Stephens, Mary G. Mason, John W. Miley, Leonard J. Starks | 2003-12-23 |
| 6022402 | Wax compositions comprising alkenyl succinic anhydride-capped poly (oxyalkylenated) colorants | Leonard J. Starks | 2000-02-08 |
| 5973064 | Colored polyester thermoplastic materials comprised of poly(oxyalkylenated) compounds as colorants and specific surfactants as diluents | X. Edward Zhao, Todd D. Danielson, Elizabeth M. Irwin | 1999-10-26 |