Patents per Year
Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5462794 | Foamed core-reclaim multi layer sheet having improved resistance to barrier film delamination | David Lindemann, Weilong L. Chiang, Melvin L. Luetkens, Jr., John C. Schubert | 1995-10-31 | $104,314,000 |
| 5354402 | Method of producing a thermoplastic foam sheet | Melvin L. Luetkens, Jr., John C. Schubert | 1994-10-11 | $28,061,000 |
| 5221395 | Method for producing a foamed core-reclaim multi-layer sheet | Melvin L. Luetkens, Jr., John C. Schubert | 1993-06-22 | $24,199,000 |
| 5128196 | Foamed core-reclaim multi-layer sheet and process for production thereof | Melvin L. Luetkens, Jr., John C. Schubert | 1992-07-07 | $55,583,000 |