Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5462794 | Foamed core-reclaim multi layer sheet having improved resistance to barrier film delamination | David Lindemann, Weilong L. Chiang, Melvin L. Luetkens, Jr., Robert D. Pischke | 1995-10-31 |
| 5354402 | Method of producing a thermoplastic foam sheet | Melvin L. Luetkens, Jr., Robert D. Pischke | 1994-10-11 |
| 5221395 | Method for producing a foamed core-reclaim multi-layer sheet | Melvin L. Luetkens, Jr., Robert D. Pischke | 1993-06-22 |
| 5128196 | Foamed core-reclaim multi-layer sheet and process for production thereof | Melvin L. Luetkens, Jr., Robert D. Pischke | 1992-07-07 |
| 4878970 | Heating of a foam cup to increase stiffness | Edward C. LeDuc | 1989-11-07 |
| 4455272 | Method of extruding a polystyrene foam using both a physical blowing agent and water | Edward C. LeDuc | 1984-06-19 |
| 4363848 | Three layered foam-containing laminate suitable for use as an automobile headliner | Edward C. Le Duc | 1982-12-14 |
| 4350730 | Plastic laminate | Stephen J. Cyr, John Dehlinger | 1982-09-21 |
| 4253600 | Fast food container | — | 1981-03-03 |