Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9945494 | Pneumatic directional valve and method of operation | — | 2018-04-17 |
| 9719351 | Rotary vane motor with split vane | — | 2017-08-01 |
| 9470324 | Directional valve and method of operation | — | 2016-10-18 |
| 9206688 | High torque rotary motor with multi-lobed ring with inlet and outlet | — | 2015-12-08 |
| 9193046 | Auto cycle pump and method of operation | — | 2015-11-24 |
| 8192173 | Pressure compensated and constant horsepower pump | Douglas P. Miller, Donald Blackman, James M. Heim | 2012-06-05 |
| 7950910 | Piston cartridge | Douglas P. Miller, Donald Blackman, James M. Heim | 2011-05-31 |
| 7316177 | Hydraulic hand pump with locking device | Travis Bakker, Douglas P. Miller | 2008-01-08 |
| D520522 | Hand pump | Travis Bakker | 2006-05-09 |
| 5676169 | Counterbalance valve | — | 1997-10-14 |
| 5617771 | Auto cycle pump | — | 1997-04-08 |
| 5613516 | Combination hydraulic pressure regulator and pressure switch | — | 1997-03-25 |
| 4471805 | Control valve | James C. Solie, James I. Masterman, Larry D. Allard | 1984-09-18 |
| 4352644 | Air-hydraulic pump | Terrance Anderson | 1982-10-05 |