Levis, Jr.; William W.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Levis, Jr.; William W..The latest application filed is for "alkylene oxide adducts of vicinal toluenediamine".
- Levis, Jr.; William W. - Wyandotte MI
| Patent | Date |
|---|---|
| Alkylene oxide adducts of vicinal toluenediamine Grant 4,562,290 - Korczak , et al. December 31, 1 | 1985-12-31 |
| Propylene oxide adducts of toluenediamine Grant 4,421,871 - Korczak , et al. December 20, 1 | 1983-12-20 |
| Propylene oxide adducts of toluenediamine Grant 4,391,728 - Korczak , et al. July 5, 1 | 1983-07-05 |
| Stabilized polyoxyalkylene polyether polyol Grant 4,228,247 - Moore , et al. October 14, 1 | 1980-10-14 |
| Process for the preparation of polyurethane foams Grant 4,052,345 - Austin , et al. October 4, 1 | 1977-10-04 |
| Polyurethane foams resistant to discoloration Grant 4,021,385 - Austin , et al. May 3, 1 | 1977-05-03 |
| Highly-stable graft copolymer dispersions in polyols containing unsaturation and polyurethanes prepared therefrom Grant RE29,014 - Pizzini , et al. October 26, 1 | 1976-10-26 |
| Graft copolymers Grant 3,875,258 - Patton, Jr. , et al. April 1, 1 | 1975-04-01 |
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