Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4978743 | Process for the continuous, counter flow/direct flow extraction of polyamides | Harald Selbeck, August Bockmann, Frank Elmo Weber | 1990-12-18 |
| 4631338 | Process for the isolation of thermoplastic polycarbonate from solution with vapor of benzene or alkylbenzene | Karl-Heinrich Meyer, Uwe Hucks | 1986-12-23 |