Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814359 | Process for producing flexible polyurethane foam using hexahydro-S-triazine catalysts | Frank E. Critchfield, Paul M. Westfall | 1989-03-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814359 | Process for producing flexible polyurethane foam using hexahydro-S-triazine catalysts | Frank E. Critchfield, Paul M. Westfall | 1989-03-21 |