Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6488263 | Valve stem and method of manufacture; improved stem packing | — | 2002-12-03 |
| 6386230 | Position sensing system for butterfly valves | — | 2002-05-14 |
| 6276393 | Position sensing system for butterfly valves | — | 2001-08-21 |
| 6250604 | Valve stem and method of manufacturing, improved stem packing | — | 2001-06-26 |
| 6247679 | Valve stem and method of manufacture; improved stem packing | — | 2001-06-19 |
| 6195890 | Method of making a valve stem | — | 2001-03-06 |
| 6182690 | Position sensing system for butterfly valves | — | 2001-02-06 |
| 6068018 | Valve stem and method of manufacture | — | 2000-05-30 |
| 5931044 | Torque/position transducer | — | 1999-08-03 |
| 5722286 | Torque/position transducer | Thomas R. Bernard, Jan Mark Bullock, Ronald H. Drushel | 1998-03-03 |