Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8490739 | Gear box for hydraulic energy recovery | Joseph A. Kovach, James H. Blalock, Steven C. Rink, Hao Zhang | 2013-07-23 |
| 7597172 | Gear box for hydraulic energy recovery | Joseph A. Kovach, James H. Blalock, Steven C. Rink, Hao Zhang | 2009-10-06 |