Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5500452 | Soft, low density flexible polyurethane foam | Otis M. Baker, Frank E. Critchfeld | 1996-03-19 |
| 5395860 | Flexible polyurethane foams using chlorinated alkanes | Siusun K. Leung, Frank E. Critchfield | 1995-03-07 |
| 4902723 | Process for producing flexible polyurethane foam using hexahydro-s-triazine catalysts | Otis M. Baker, Frank E. Critchfield | 1990-02-20 |
| 4883825 | Process for the manufacture of low density, flexible polyurethane foams | Frank E. Critchfield, William A. Gill | 1989-11-28 |
| 4814359 | Process for producing flexible polyurethane foam using hexahydro-S-triazine catalysts | Otis M. Baker, Frank E. Critchfield | 1989-03-21 |
| 4357428 | Foamable composition | Stuart L. Watson, Jr. | 1982-11-02 |
| 4325831 | Foamable composition | Stuart L. Watson, Jr. | 1982-04-20 |