Issued Patents All Time
Showing 1–16 of 16 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 |
| 11300227 | Tamper-resistant operating nut for hydrants | — | 2022-04-12 |
| 11204102 | Watertight check valve | Sean Michael Allen, Christopher Joseph Duckett | 2021-12-21 |
| 11186971 | Auxiliary valve for hydrant | Sean Michael Allen, Christopher Joseph Duckett | 2021-11-30 |
| 10920906 | Tamper-resistant operating nut for hydrants | — | 2021-02-16 |
| 10513838 | Hydrant cap with retainer | Christopher Joseph Duckett | 2019-12-24 |
| 10458568 | Tamper-resistant operating nut for hydrants | — | 2019-10-29 |
| D854125 | Modular hydrant | Christopher Joseph Duckett, Alan B. Channell, Ajay K. Roy | 2019-07-16 |
| D852932 | Dome-top hydrant | Christopher Joseph Duckett, Alan B. Channell, Ajay K. Roy | 2019-07-02 |
| D769416 | Fire hydrant | James M. Guest, Christopher Joseph Duckett, Gary Wayne Hadley, Zack Snyder | 2016-10-18 |
| D762282 | Fire hydrant fluting | James M. Guest, Christopher Joseph Duckett, Gary Wayne Hadley, Zack Snyder | 2016-07-26 |
| D762283 | Set of fire hydrant contours | James M. Guest, Christopher Joseph Duckett, Gary Wayne Hadley, Zack Snyder | 2016-07-26 |