Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4260722 | Production of ethylene copolymers | Klaus Pfleger, Wieland Zacher, Klaus Boettcher, Oskar Buechner, Franz G. Mietzner | 1981-04-07 |
| 4217431 | Manufacture of ethylene copolymers | Wieland Zacher, Klaus Pfleger, Klaus Boettcher, Oskar Buechner | 1980-08-12 |