Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814167 | Pyrettroid macroemulsions containing polyvinyl alcohol | Wolfgang Wirth, Heinz J. Niessen | 1989-03-21 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4814167 | Pyrettroid macroemulsions containing polyvinyl alcohol | Wolfgang Wirth, Heinz J. Niessen | 1989-03-21 |