Williams, III; Frank J.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Williams, III; Frank J..The latest application filed is for "polyetherimides prepared by self-condensation of hydroxyaryl phthalimide salts".
- Williams, III; Frank J. - Scotia NY
| Patent | Date |
|---|---|
| Polyetherimides prepared by self-condensation of hydroxyaryl phthalimide salts Grant 4,297,474 - Williams, III , et al. October 27, 1 | 1981-10-27 |
| Method for making aromatic ether imides Grant 4,273,712 - Williams, III June 16, 1 | 1981-06-16 |
| Method for making aromatic cyclic polyformals Grant 4,136,087 - Williams, III , et al. January 23, 1 | 1979-01-23 |
| Polysulfoneimides Grant 4,107,147 - Williams, III , et al. August 15, 1 | 1978-08-15 |
| Polythioethermides Grant 4,092,297 - Williams, III May 30, 1 | 1978-05-30 |
| Preparation of aromatic bisimides Grant 4,017,511 - Williams, III April 12, 1 | 1977-04-12 |
| Method for making polyetherimides using a sodium chloride or ferric sulfate catalyst Grant 3,998,840 - Williams, III , et al. December 21, 1 | 1976-12-21 |
| Thio-bis(phthalimides) Grant 3,989,712 - Williams, III November 2, 1 | 1976-11-02 |
| Novel polyetherimides Grant 3,983,093 - Williams, III , et al. September 28, 1 | 1976-09-28 |
| Aromatic dithio dianhydrides Grant 3,933,862 - Williams, III January 20, 1 | 1976-01-20 |
| Polythioetherimides and method of preparation Grant 3,933,749 - Williams, III January 20, 1 | 1976-01-20 |
| N-Substituted aromatic thioetherophthalimides Grant 3,922,284 - Heath , et al. November 25, 1 | 1975-11-25 |
| Method For Making Polyetherimides Grant 3,855,178 - White , et al. December 17, 1 | 1974-12-17 |
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