Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5344992 | Process for the preparation of linear 1,3-diketones | Rolf Drewes, Hans Mehner, Bernd Braun, Walter Wecht | 1994-09-06 |
| 5322964 | Process for the preparation of alpha-aminoketone salts | Rolf Drewes | 1994-06-21 |
| 5288776 | Substituted pyrroles as stabilisers for chlorinated polymers | Rolf Drewes | 1994-02-22 |