Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9920392 | Apparatus for induction hardening | Jerry Mills, William Stuehr, John Gadus, Stephen P. Johnson | 2018-03-20 |
| 9169529 | Inductive heating for hardening of gear teeth and components alike | Stephen P. Johnson, Xiaolan Ai | 2015-10-27 |
| 8993942 | Apparatus for induction hardening | Jerry Mills, William Stuehr, John Gadus, Stephen P. Johnson | 2015-03-31 |