Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8069555 | Manufacturing method utilizing a dual layer winding pattern | Yifan Tang | 2011-12-06 |
| 8008827 | Triple layer winding pattern and methods of manufacturing same | Yifan Tang | 2011-08-30 |