Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7731153 | Handle for valves | Peter Tkaczyk | 2010-06-08 |
| 7011291 | Handle for valves | Walter Schapper | 2006-03-14 |
| 6267139 | Valve arrangement | Walter Schapper | 2001-07-31 |
| 6253791 | Ball valve | — | 2001-07-03 |