Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5824400 | Plastic article and process for the preparation thereof | Jordanis PETRAKIS, Wolfgang Hoge, Torsten Leenaerts, Marinus Alfenaar | 1998-10-20 |
| 4325872 | Process for the preparation of a 2-pyrrolidone | Peter J. N. Meyer | 1982-04-20 |
| 4279820 | Process for preparing 2-pyrrolidones | — | 1981-07-21 |
| 4193925 | Process for preparing 2-pyrrolidone | Peter J. N. Meijer | 1980-03-18 |