Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4430380 | Bonded structures of textile materials | Hans Honel, Walter Michel, Steffen Piesch, Manfred Seidel, Wolfgang Spieler | 1984-02-07 |
| 4430494 | Melamine resins, a process for their preparation and their use and molding compositions produced from the resins | Hans Honel, Walter Michel, Steffen Piesch, Alfons Wolf | 1984-02-07 |