Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889870 | 2-(2,2-Difluorocyclopropyl)alkyl esters, processes for their preparation and their use as insecticides and acaricides | Hans-Rudolf Kruger, Dietrich Baumert, Hartmut Joppien | 1989-12-26 |
| 4888340 | Insecticides pyrazolines, compositions and use | Harribert Neh, Ulrich Buhmann, Hartmut Joppien, David Giles, Graham P. Rowson | 1989-12-19 |