Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6446049 | Method and apparatus for transmitting a digital information signal and vending system incorporating same | Eugene A. Janning, Robert G. Schumacher, II | 2002-09-03 |
| 6166643 | Method and apparatus for controlling the whereabouts of an animal | Eugene A. Janning | 2000-12-26 |
| 6064308 | RF signaling system and system for controlling the whereabouts of animals using same | Eugene A. Janning | 2000-05-16 |