Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6444329 | Method of preserving plywood and particle board against decay and mould | Markku Lehtonen, Markku Lahteenmaki, Anne-Christine Ritschkoff | 2002-09-03 |
| 4854654 | Collapsible cabinet | — | 1989-08-08 |