Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6620374 | Induction heat-treating of threaded fasteners with a rotary conveyor | Dean P. Stefanac, Donald H. Wiseman, William Cartwright Weller | 2003-09-16 |
| 6437302 | Interruptible variable frequency power supply and load matching circuit, and method of design | — | 2002-08-20 |
| 6255634 | Transverse flux heating coil and method of use | — | 2001-07-03 |
| 6166933 | Snubber circuit for an inverter having inductively coupled resistance | — | 2000-12-26 |
| 6078033 | Multi-zone induction heating system with bidirectional switching network | Chuck F. Der, James D. Parker | 2000-06-20 |