Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4994268 | Pheromone formulation for attracting spruce beetles | Helmut Wieser, Herbert F. Cerezke, Alan A. MacKenzie | 1991-02-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4994268 | Pheromone formulation for attracting spruce beetles | Helmut Wieser, Herbert F. Cerezke, Alan A. MacKenzie | 1991-02-19 |