Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6240691 | Prefabricated composite building panel with fire barrier | Rolf Holzkaemper | 2001-06-05 |
| 5715637 | Prefabricated composite building panel with improved fire retardancy | Rolf Holzkaemper | 1998-02-10 |
| 5693413 | Moldable materials utilizing recyclable substances | Harold Moen | 1997-12-02 |