Issued Patents 1989
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882412 | Polyester polymer containing the residue of the UV absorbing benzopyran compound and shaped articles produced therefrom | Max A. Weaver, Clarence A. Coates, Jr., Wayne P. Pruett | 1989-11-21 |
| 4845187 | Condensation polymers containing methine ultraviolet radiation-absorbing residues and shaped articles produced therefrom | Max A. Weaver, Wayne P. Pruett | 1989-07-04 |
| 4845188 | Condensation polymers containing methine ultraviolet radiation-absorbing residues and shaped articles produced therefrom | Max A. Weaver, Wayne P. Pruett, Clarence A. Coates, Jr. | 1989-07-04 |
| 4826903 | Condensation polymer containing the residue of an acyloxystyrl compound and shaped articles produced therefrom | Max A. Weaver, Wayne P. Pruett, Clarence A. Coates, Jr. | 1989-05-02 |
| 4808677 | Condensation polymer containing copolymerized colorants derived from indigo and articles produced therefrom | Max A. Weaver, Clarence A. Coates, Jr., Wayne P. Pruett | 1989-02-28 |
| 4803241 | Condensation polymers containing styrylbenzazole ultraviolet radiation-absorbing residues and shaped articles produced therefrom | Max A. Weaver, Wayne P. Pruett, Robert D. Burpitt | 1989-02-07 |
| 4803255 | Lignin and lignin derivatives as copolymerizable colorants for polyesters | Wayne P. Pruett, John A. Hyatt | 1989-02-07 |