Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7334688 | Filtration system and seal assembly | Stephen Haub | 2008-02-26 |
| 7152745 | Filter bypass monitoring system | Frank M. Croket, Richard Duncum | 2006-12-26 |
| 6911142 | Overhead return piping system | Richard Comer | 2005-06-28 |