Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11662027 | Double seal lubricated packing gland and rotating sleeve | John Hall, Andrew Anderson, Michael R. Crawford | 2023-05-30 |
| 11168794 | Double seal lubricated packing gland and rotating sleeve | John Hall, Andrew Anderson, Michael R. Crawford | 2021-11-09 |
| 9683564 | Internal gear pump with improved communication between inlet and idler and between inlet and rotor | Scott M. Meyer, Emily P. Timm, Nicolas V. Thompson | 2017-06-20 |