Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11558985 | Frequency converter | Kaikai Li, Huidong Lu, Enfang Xu, Weizhong Wei, Jiasheng Zhang +4 more | 2023-01-17 |
| 11523467 | Group control device | Tao Ding, Shouyuan Zhao, Hongming Wang, Hongbo Li, Zhongxian Gao +4 more | 2022-12-06 |
| 10855211 | Self-calibration of ECM motor and variable frequency drive inferred torque | Wayne N. Kraft | 2020-12-01 |
| 10330099 | HVAC compressor prognostics | Don A. Schuster, Thomas Inard Reed, III | 2019-06-25 |
| 10295236 | Compressor heating system | Don A. Schuster, Drew Whitehurst | 2019-05-21 |
| 9973129 | HVAC components having a variable speed drive with optimized power factor correction | Don A. Schuster | 2018-05-15 |
| 9816742 | Variable frequency drive apparatuses, systems, and methods and controls for same | Raymond Walter Rite, Bill Brandt | 2017-11-14 |
| 9448271 | Diagnostics for systems including variable frequency motor drives | Raymond Walter Rite, William David Daugherty, III | 2016-09-20 |