Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7940532 | Power conversion device frame packaging apparatus and methods | Steven Willing, Robert E. Campbell, Alberto Avendano | 2011-05-10 |
| 5994810 | Integral steel-aluminum ring for eddy current activated friction clutch | John Davis, Rick Vatsaas | 1999-11-30 |
| 5636719 | Rotational control apparatus | John Davis, Robert C. Bredt, Darren Reasy | 1997-06-10 |
| 5398794 | Overheating protection device for rotational control apparatus | David Walberg | 1995-03-21 |