Issued Patents 1989
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880456 | Cyclohexenone derivatives, their preparation and their use for controlling undesirable plant growth | Dieter Kolassa, Michael Keil, Ulrich Schirmer, Hans Theobald, Bruno Wuerzer +1 more | 1989-11-14 |
| 4877887 | Preparation of alkoxy maleic anhydrides | Wolfgang Rohr | 1989-10-31 |
| 4877891 | 1,1-dialkoxy- or 1,1-(alpha, omega-methylenedioxy)-non-2-yn-9-01 and their OH-protected derivatives | Walter Seufert, Ernst Buschmann, Christiane Bruchner | 1989-10-31 |
| 4870100 | Pyrethroids and their use for controlling pests | Bernd Wolf, Hans Theobald, Norbert Goetz, Walter Himmele, Rudolf Kropp | 1989-09-26 |
| 4851032 | Cyclohexane-1,3-dione derivatives, their preparation and their use for controlling undesired plant growth | Dieter Jahn, Norbert Goetz, Bruno Wuerzer | 1989-07-25 |
| 4844735 | 5-aryl-cyclohexane-1-3-dione derivatives, herbicides containing these compounds, and the preparation of these compounds | Dieter Jahn, Wolfgang Rohr, Bruno Wuerzer | 1989-07-04 |
| 4844729 | Substituted N-phenylpyridazone derivatives | Ulrich Wriede, Ulrich Schirmer, Adolf Parg, Bruno Wuerzer, Norbert Meyer | 1989-07-04 |
| 4837346 | Preparation of esters of tetrahydropyran-4-carboxylic acid | Heinz Eckhardt, Rolf Fischer, Wolfgang Spiegler, Uwe Vagt | 1989-06-06 |