Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5326513 | Process and device for the production of plastic fiber boards | — | 1994-07-05 |
| 5069014 | Holding means for securing facade panels | — | 1991-12-03 |
| 4919866 | Manufacture of lightweight structural elements | — | 1990-04-24 |
| 4606160 | Plaster backing panel for ventilated curtain wall system | — | 1986-08-19 |