Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5290987 | Electrical discharge machining apparatus | Paul Davis | 1994-03-01 |
| 4782203 | Wire guide for electric discharge machine | John M. Check, George Barbulescu | 1988-11-01 |
| 4670635 | Multi-electrode electrical discharge machining apparatus | Frederick L. Fitts | 1987-06-02 |
| 4639568 | Apparatus and method for finishing fuel injector spray tips using EDM | John M. Check | 1987-01-27 |