Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12270478 | Valve system and method for reducing water hammer effect | Niklas Seyferth | 2025-04-08 |
| 11767923 | Break-away check valve | Niklas Seyferth, William A. Seyferth | 2023-09-26 |
| 11187332 | Break-away check valve | — | 2021-11-30 |
| 10060101 | Backflow and breakaway check valve | — | 2018-08-28 |
| 9353878 | Dual plate backflow and breakaway check valve | Aaron Plummer, Jerry Friedman, Uri Shohet | 2016-05-31 |
| 4969620 | Stud climbing/support device | — | 1990-11-13 |