Issued Patents 2023
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D986753 | Pet boundary transmitter | Darrell Douglas, John Spangler, Robert A. Nytko | 2023-05-23 |
| D986512 | Pet boundary collar receiver | Darrell Douglas, John Spangler, Robert A. Nytko | 2023-05-16 |
| D985407 | Pet boundary control panel | Darrell Douglas, John Spangler, Robert A. Nytko | 2023-05-09 |