Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11788256 | Dual architecture for an electro-hydraulic drive system | Dale Vanderlaan, Hao Zhang | 2023-10-17 |
| 11781289 | Electro-hydraulic drive system for a machine | Hao Zhang, Dale Vanderlaan, Germano Franzoni | 2023-10-10 |
| 11225776 | Boom potential energy recovery of hydraulic excavator | Nicholas N. White, James Howland, Hao Zhang | 2022-01-18 |
| 10941542 | Boom potential energy recovery of hydraulic excavator | Nicholas N. White, James Howland, Hao Zhang | 2021-03-09 |
| 10815646 | Boom potential energy recovery of hydraulic excavator | Nicholas N. White, James Howland, Hao Zhang | 2020-10-27 |
| 10358797 | Boom potential energy recovery of hydraulic excavator | Nicholas N. White, James Howland, Hao Zhang | 2019-07-23 |
| 10316867 | Hydraulic rotary actuator with built-in mechanical position feedback | James Howland | 2019-06-11 |
| 10160439 | Power efficiency control mechanism for a working machine | Hao Zhang, Raymond Collett, Zhesheng Jiang | 2018-12-25 |
| 8827853 | Hydraulic power split engine with enhanced torque assist | Hao Zhang, Richard D. Kimpel | 2014-09-09 |
| 8517133 | System including output coupled powersplit transmission | Stephen D. Horsfall, Joseph A. Kovach | 2013-08-27 |
| 8454469 | Power split transmission with energy recovery | Monika Marianne Ivantysynova, Kyle Richard Williams | 2013-06-04 |
| 8277352 | Power split transmission with energy recovery | Monika Marianne Ivantysynova, Kyle Richard Williams | 2012-10-02 |