Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10675830 | Packer device | Steven D. Kay, Robert E. Hammerquist, Steven A. Hartney | 2020-06-09 |
| 10012247 | Variable booster for hybrid pneumatic regenerative system | Steven D. Kay, Robert E. Hammerquist, Steven A. Hartney | 2018-07-03 |