Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4356129 | Process for the preparation of neutral phosphorous acid aryl esters | Erhard Tresper, Claus Wulff | 1982-10-26 |
| 4327208 | Continuous process for the hydrolytic production of polycaprolactam having a low-monomer and low-dimer content | Gunter Lehr, Hugo Vernaleken, Werner Nielinger, Erhard Tresper | 1982-04-27 |
| 4312642 | Method for the separate discharge of the individual phase streams of a multiple phase flow | Gunter Lehr, Karl-Dieter Lohr, Hugo Vernaleken | 1982-01-26 |