Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6782328 | Measurement of concentration of material in a process fluid | Mark S. Schumacher, James A. Johnson, Kurt C. Diede | 2004-08-24 |
| 6722261 | Hydraulic piston position sensor signal processing | Gregory C. Brown, James A. Johnson | 2004-04-20 |