Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7329105 | Multi-directional pump | — | 2008-02-12 |
| 7249556 | Compressor with fortified piston channel | Robert L. Koelzer, Michael R. Jenkins, Andrew W. Adams | 2007-07-31 |
| 6439857 | Axial piston compressor | Robert L. Koelzer, Andrew W. Adams, Michael R. Jenkins | 2002-08-27 |