Issued Patents 1989
Showing 1–4 of 4 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, Wayne P. Pruett, Samuel D. Hilbert | 1989-11-21 |
| 4845188 | Condensation polymers containing methine ultraviolet radiation-absorbing residues and shaped articles produced therefrom | Max A. Weaver, Wayne P. Pruett, Samuel D. Hilbert | 1989-07-04 |
| 4826903 | Condensation polymer containing the residue of an acyloxystyrl compound and shaped articles produced therefrom | Max A. Weaver, Samuel D. Hilbert, Wayne P. Pruett | 1989-05-02 |
| 4808677 | Condensation polymer containing copolymerized colorants derived from indigo and articles produced therefrom | Max A. Weaver, Wayne P. Pruett, Samuel D. Hilbert | 1989-02-28 |