Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4978711 | Aqueous aminoresin solutions for low-formaldehyde surface bonding | Engelbert Weber, Guenther Matthias | 1990-12-18 |
| 4963599 | Preparation of woodworking materials | Johann Mayer | 1990-10-16 |