Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7237280 | Tub overflow assembly | Chris Graham, Frank Pieters | 2007-07-03 |
| D442260 | Multiple outlet valve | Richard E. Marzec, Frank Pieters | 2001-05-15 |
| 6206028 | Universal multi-path control valve system | Richard E. Marzec, Frank Pieters | 2001-03-27 |