Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8454334 | Lubricant control valve for a screw compressor | Joseph M. Heger | 2013-06-04 |
| 6135744 | Piston unloader arrangement for screw compressors | Garry E. Andersen | 2000-10-24 |
| 4448458 | Shut-off cylinder for a supply accumulator of a hydraulic brake system | George T. Knothe | 1984-05-15 |