Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6969922 | Transformerless, load adaptive speed controller | Richard Shaun Welches, Jian Wen | 2005-11-29 |
| 6879053 | Transformerless, load adaptive speed controller | Richard Shaun Welches, Jian Wen, Kevin E LeRow, Richard Griessel, Thomas O'Reilly | 2005-04-12 |