Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5401552 | Geocomposite liner | Harald Unger | 1995-03-28 |
| 5388838 | Collapsible stiff game board | — | 1995-02-14 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5401552 | Geocomposite liner | Harald Unger | 1995-03-28 |
| 5388838 | Collapsible stiff game board | — | 1995-02-14 |