Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5654346 | Low density thermoplastic foam | Louis Halberstadt, Joseph V. Perry, Dan C. Muessel | 1997-08-05 |
| 5607629 | Process for extruding low density foam using water as a blowing agent | Alan J. DeMello, Douglas W. Hartford, Dan C. Muessel, Louis Halberstadt | 1997-03-04 |