Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7322488 | Expansion tank with double diaphragm | David van Houten | 2008-01-29 |
| 7303091 | Expansion tank with double diaphragm | — | 2007-12-04 |
| 7108015 | In-line flow through diaphragm tank | Wei-Chiao Lo | 2006-09-19 |
| 7052243 | Pressure regulating valve | Gerard Duggan, David van Houten | 2006-05-30 |
| 6644929 | Pressure regulating valve | Gerard Duggan, David van Houten | 2003-11-11 |
| 6305416 | Actuator valve for pressure switch for a fluidic system | Fred Snel, Stefan Beekhuis, Wolf Joerg | 2001-10-23 |
| 6264247 | Full flow water connector assembly especially suitable for use in double-diaphragm tanks | Wolf Joerg, Fred Snel | 2001-07-24 |