Issued Patents 2018
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9973004 | Change of current return path in a bipole power transmission system | Tommy Holmgren, Felipe Sobrinho, Hector-Armando Avila, Per-Erik Bjorklund, Sören Nyberg | 2018-05-15 |