Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7513150 | Check valve module for flow meters with fluid hammer relief | Earl H. Parris, John Michael Kay | 2009-04-07 |
| 7357023 | Modular inserts comprising check valves for flow meters | Earl H. Parris, Andrew Weaver | 2008-04-15 |
| 7191666 | Check valve module for flow meters | Earl H. Parris, Andrew Weaver | 2007-03-20 |