Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5640932 | Apparatus for and method of deterring entry of an animal into a barrier region | Lance Ehren | 1997-06-24 |
| 5617814 | Method of and apparatus for training an animal | Lance Ehren | 1997-04-08 |