Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4668455 | Method of shaping a polymer/steroid admixture into a product for repelling non-predatory animals | Helge Hansen, Borje Nystrom | 1987-05-26 |
| 4657759 | Method and means for repelling animals | Helge Hansen, Borje Nystrom | 1987-04-14 |
| 4534976 | Method and means for repelling animals | Helge Hansen, Borje Nystrom | 1985-08-13 |
| 4451460 | Method and means for repelling animals | Helge Hansen, Borje Nystrom | 1984-05-29 |