Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5733630 | Multi-level, expanded resinous product | Rudolf Frisch | 1998-03-31 |
| 5728332 | Method of making a multi-level, expanded resinous product | Rudolf Frisch | 1998-03-17 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5733630 | Multi-level, expanded resinous product | Rudolf Frisch | 1998-03-31 |
| 5728332 | Method of making a multi-level, expanded resinous product | Rudolf Frisch | 1998-03-17 |