Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11056908 | Uninterruptible power supply systems and methods using isolated interface for variably available power source | Robert W. Johnson, Yu Liu, Pasi Taimela, Robert C. Sebald | 2021-07-06 |
| 10778007 | UPS systems and methods using coordinated static switch and inverter operation for generator walk-in | — | 2020-09-15 |
| 10199858 | Uninterruptible power supply systems and methods using isolated interface for variably available power source | Robert W. Johnson, Yu Liu, Pasi Taimela, Robert C. Sebald | 2019-02-05 |
| 10116144 | Wireless power transfer apparatus using enclosures with enhanced magnetic features and methods of fabricating the same | Jun Xu, Xiaojun Wang, Yilei Gu, Qinjie Zheng, Birger Pahl | 2018-10-30 |
| 9876354 | UPS systems and methods using coordinated static switch and inverter operation for generator walk-in | — | 2018-01-23 |
| 9297862 | Systems and apparatus for fault detection in DC power sources using AC residual current detection | George W. Oughton, Jr., Yu Liu, Debrup Das, Pasi Taimela | 2016-03-29 |