Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6866202 | Variable output heating and cooling control | Paul E. Sigafus, Ralph H. Torborg, Larry Lutton | 2005-03-15 |
| 6864659 | Variable speed controller for air moving applications using an AC induction motor | Paul E. Sigafus, Larry Lutton, Nickolas G. Vrionis | 2005-03-08 |