Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10734808 | Method for controlling a variable transformer and electrical system for coupling two AC networks | Haijun Feng | 2020-08-04 |
| 10027121 | Method and apparatus for controlling stability of a local power grid | Haijun Feng | 2018-07-17 |
| 9918359 | Device and method for reducing network reactions when an electric arc furnace is in operation | Klaus Krueger, Dieter Dohnal, Karsten Viereck | 2018-03-13 |