Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5763502 | Microvoid polyurethane materials | Martin C. Barker, Norman W. Keane, Guy Leon Jean Ghislain Biesmans, Karen Van der Sande | 1998-06-09 |
| 5652278 | Microvoid polyurethane materials | Martin C. Barker, Norman W. Keane, Guy Leon Jean Ghislain Biesmans, Karen Van der Sande | 1997-07-29 |