Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870100 | Pyrethroids and their use for controlling pests | Hans Theobald, Rainer Becker, Norbert Goetz, Walter Himmele, Rudolf Kropp | 1989-09-26 |
| 4810346 | Magnetron type sputtering cathode | Peter Wirz | 1989-03-07 |