Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820517 | Process for obtaining a pepper extract with insecticidal activity | Hans Pfeiffer, Manfred Biermann, Peter Schroeder, Gerd Goebel | 1989-04-11 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4820517 | Process for obtaining a pepper extract with insecticidal activity | Hans Pfeiffer, Manfred Biermann, Peter Schroeder, Gerd Goebel | 1989-04-11 |