Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5691389 | Recycling of flexible foam | David Thorpe, Gabriel Verhelst, Julian Francis George Hopper, Mireille De Witte | 1997-11-25 |
| 5605935 | Recycling of flexible foam | David Thorpe, Gabriel Verhelst, Julian Francis George Hopper, Mireille De Witte | 1997-02-25 |