Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11060338 | Door closer | Philip Gallagher | 2021-07-13 |
| D507660 | Pet door | — | 2005-07-19 |
| D494715 | Pet collar key | — | 2004-08-17 |
| 6141911 | Pet door | — | 2000-11-07 |
| 5701702 | Pet door | Christopher Sumner | 1997-12-30 |
| 5469659 | Pet Door | John Kopec, Christopher Sumner | 1995-11-28 |
| 5432977 | Door Closers | John Kopec, Christopher M. Cornwell, Christopher Sumner | 1995-07-18 |
| D339429 | Automatic animal feeder | John Kopec | 1993-09-14 |
| 5176103 | Animal feeder | John Kopec, Christopher M. Cornwell, Christopher Sumner, Colin S. Mill | 1993-01-05 |
| 4969292 | Pet doors | John Kopec | 1990-11-13 |