Issued Patents 1989
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4867784 | Cyclohexenone derivatives, preparation thereof and use thereof as herbicidal and plant growth regulator agents | Michael Keil, Wolfgang Spiegler, Dieter Kolassa, Ulrich Schirmer, Bruno Wuerzer +3 more | 1989-09-19 |
| 4853727 | Process and device for treating a photographic recording material | Jurgen Ganzke, Bruno Kritzner | 1989-08-01 |
| 4851032 | Cyclohexane-1,3-dione derivatives, their preparation and their use for controlling undesired plant growth | Rainer Becker, 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 | Wolfgang Rohr, Rainer Becker, Bruno Wuerzer | 1989-07-04 |
| 4812160 | Cyclohexenone derivatives, preparation and use thereof as herbicides | Michael Keil, Dieter Kolassa, Ulrich Schirmer, Bruno Wuerzer, Norbert Meyer +2 more | 1989-03-14 |