Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4464266 | Removal of caprolactam and its oligomers from cooling water containing these compounds | Robert Kegel, Guenter Valentin, Werner Hoerauf | 1984-08-07 |
| 4446089 | Process and apparatus for the production of plastic strands | Guenter Valentin, Werner Hoerauf | 1984-05-01 |
| 4436897 | Preparation of polycaprolactam with aqueous extract containing caprolactam and caprolactam oligomers | Werner Hoerauf, Friedrich Urbanek | 1984-03-13 |
| 4429107 | Continuous preparation of polycaprolactam wherein constant composition is maintained | Werner Hoerauf, Guenter Valentin, Friedrich Urbanek | 1984-01-31 |
| 4388425 | Production of concentrates of titanium dioxide in polycaprolactam | Werner Hoerauf, Guenter Valentin | 1983-06-14 |