Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4804725 | Reduction of the emission of hydrocarbons in pressure-reduction processes in high pressure polymerization reactors | Franz G. Mietzner, Klaus Pfleger, Siegfried Kursawe, Klaus Boettcher, Gerhard Arnold | 1989-02-14 |