Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6807985 | High rangeability control valve | Christopher Bittner | 2004-10-26 |
| 6745084 | Valve positioner system | Henry W. Boger, Christopher Colwell, Peter Levesque, Larry Gene Schoonover, Raymond Villier +2 more | 2004-06-01 |