Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4762950 | Selective oxyalkylaton of N-(2-hydroxyalkyl)-aniline | William W. Levis, Jr. | 1988-08-09 |
| 4590225 | Polyurethane products based on alkylene oxide adducts of aniline having reduced viscosity | William W. Levis, Jr. | 1986-05-20 |
| 4562290 | Alkylene oxide adducts of vicinal toluenediamine | William W. Levis, Jr. | 1985-12-31 |
| 4517383 | Alkylene oxide adducts of aniline having reduced viscosity | William W. Levis, Jr. | 1985-05-14 |
| 4421871 | Propylene oxide adducts of toluenediamine | William W. Levis, Jr. | 1983-12-20 |
| 4391728 | Propylene oxide adducts of toluenediamine | William W. Levis, Jr. | 1983-07-05 |