Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868223 | Use of amine initiated butylene oxide polyols in polyurethane products | Douglas P. Waszeciak, Douglas Hillshafer | 1989-09-19 |
| 4863994 | Use of monohydric alcohols in molded polyurethane resins | Douglas P. Waszeciak | 1989-09-05 |