Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868223 | Use of amine initiated butylene oxide polyols in polyurethane products | Donald L. Nelson, Douglas Hillshafer | 1989-09-19 |
| 4863994 | Use of monohydric alcohols in molded polyurethane resins | Donald L. Nelson | 1989-09-05 |
| 4810444 | Method for making mat-molded rim parts | Louis M. Alberino, Peter S. Carleton | 1989-03-07 |