Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8540827 | Undercut crankshaft hardening coil | Ronald R. Akers, Richard McKelvey | 2013-09-24 |
| 8178038 | Undercut crankshaft hardening coil | Ronald R. Akers, Richard McKelvey | 2012-05-15 |