Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7500491 | Sanitary fluid pressure control valve | — | 2009-03-10 |
| 6837693 | Fluid-pumping system employing piston-driven pump and employing at least one pulsation dampener | — | 2005-01-04 |
| 6669455 | Fluid-pumping system employing air-driven pump and employing at least one pulsation dampener | — | 2003-12-30 |
| 5807427 | Gas/liquid separator with controllable variable liquid level | — | 1998-09-15 |
| 5603826 | Return pump system for use with clean-in-place system for use with vessels | — | 1997-02-18 |
| 5398733 | Readily cleaned liquid transfer system | — | 1995-03-21 |
| 5392797 | Single motive pump, clean-in-place system, for use with piping systems and with vessels | — | 1995-02-28 |
| 5096396 | Rotary apparatus having passageways to clean seal chambers | — | 1992-03-17 |
| 5070897 | Flow controller | — | 1991-12-10 |
| 4979441 | Pulsation dampener | Douglas Edwards | 1990-12-25 |
| 4339111 | Clean in place diaphragm valve | — | 1982-07-13 |
| 4311164 | Valve handle retention system | — | 1982-01-19 |