Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D514909 | Cordless drill | — | 2006-02-14 |
| D471161 | Heating, ventilating and air conditioning system controller | Randy S. Amborn, Peter F. Welch, Eric R. Hillmer | 2003-03-04 |
| D470114 | Heating, ventilating and air conditioning system controller | Randy S. Amborn, Peter F. Welch, Eric R. Hillmer | 2003-02-11 |
| D468616 | Tool handle | Peter F. Welch, David James Carlos Dunn | 2003-01-14 |
| D460922 | Heating, ventilating and air conditioning system controller | Randy S. Amborn, Peter F. Welch, Eric R. Hillmer | 2002-07-30 |
| D460699 | Heating, ventilating and air conditioning system controller | Randy S. Amborn, Peter F. Welch, Eric R. Hillmer | 2002-07-23 |
| D458159 | Heating, ventilating and air conditioning system controller | Randy S. Amborn, Peter F. Welch, Eric R. Hillmer | 2002-06-04 |
| D457821 | Heating, ventilating and air conditioning system controller | Randy S. Amborn, Peter F. Welch, Eric R. Hillmer | 2002-05-28 |
| D457820 | Heating, ventilating and air conditioning system controller | Randy S. Amborn, Peter F. Welch, Eric R. Hillmer | 2002-05-28 |