Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4430380 | Bonded structures of textile materials | Walter Michel, Steffen Piesch, Karin Schluter, 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 | Walter Michel, Steffen Piesch, Karin Schluter, Alfons Wolf | 1984-02-07 |
| 4271286 | Process for the preparation of etherified methylolaminotriazines | Walter Michel, Manfred Schon, Wolfgang Kaiser | 1981-06-02 |
| 4223141 | Preparation of methoxy-methyl melamines | Karlfried Keller, Walter Michel, Manfred Schon | 1980-09-16 |