Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4499259 | Optically anisotropic melt forming copolyesters | — | 1985-02-12 |
| 4496712 | Optically anisotropic melt forming copolyesters | — | 1985-01-29 |
| 4487916 | Melt-spinnable copolyesters | — | 1984-12-11 |
| 4439596 | Chlorination of hydroquinone | — | 1984-03-27 |
| 4398003 | Process for preparing thermoset polymer spheres | — | 1983-08-09 |
| 4383105 | Polyimide-esters and filaments | — | 1983-05-10 |
| 4381389 | Optically anisotropic melt forming copolyesters | — | 1983-04-26 |
| 4335232 | Optically anisotropic melt forming polyesters | — | 1982-06-15 |
| 4269965 | Aromatic polyester which forms optically anisotropic melts and filaments thereof | — | 1981-05-26 |
| 4245082 | Polyesters derived from 3,4'-dihydroxy-benzophenones or 3-hydroxy-4'-(4-hydroxyphenyl-)benzophenone and certain aromatic dicarboxylic acids and filaments thereof | — | 1981-01-13 |
| 4232143 | Polyester which exhibits anisotropy in the melt containing p-oxybenzoyl units and 4,4'-dioxybenzophenone units or methyl and chloro derivatives thereof | — | 1980-11-04 |
| 4232144 | Polyester which exhibits anisotropy in the melt containing p-oxybenzoyl units and 4-oxy-3'-carbonylbenzophenone units or methyl and chloro derivatives of said units | — | 1980-11-04 |
| 4188476 | Aromatic polyester consisting essentially of p-oxybenzoyl units, terephthaloyl units, 2,6-dioxynaphthalene or 2,6-dioxyanthraquinone units and m-oxybenzoyl or 1,3-dioxyphenylene units | — | 1980-02-12 |