Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4267091 | Binders for paints | Erich Penzel, Gregor Ley | 1981-05-12 |
| 4265796 | Preparation of aqueous polyacrylate dispersions having improved flow characteristics | Rudolf Mueller-Mall, Kurt Wendel, Michael Melan | 1981-05-05 |
| 4255310 | Aqueous paints which contain polyglycidylamines as additives | Knut Oppenlaender, Rainer Strickler, Josef Lamprecht, Erich Penzel, Gregor Ley | 1981-03-10 |