Issued Patents 2023
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11841087 | Watertight check valve | Sean Michael Allen, Christopher Joseph Duckett | 2023-12-12 |
| 11725746 | Low water hammer break check valve | Sean Michael Allen, Christopher Joseph Duckett | 2023-08-15 |
| 11692642 | Method of preventing tampering with a hydrant | — | 2023-07-04 |
| 11635150 | Watertight check valve | Sean Michael Allen, Christopher Joseph Duckett | 2023-04-25 |
| 11543050 | Tamper-resistant operating nut for hydrants | — | 2023-01-03 |