Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6616768 | Method in processing gypsum boards or tiles | — | 2003-09-09 |
| 4922677 | Board particularly for use by suspended ceilings | Lars G. Fridh, Vagn N. Rasmussen | 1990-05-08 |
| 4898056 | Method and tool for punching plaster plates | Finn Grobb, Kurt Hvalso | 1990-02-06 |