Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5467670 | Method of manufacture for rotary cutting tool | — | 1995-11-21 |
| 5291812 | Turning apparatus with improved chip handling | David Yen | 1994-03-08 |
| 5201616 | Hole finishing tool with improved axial alignment | — | 1993-04-13 |
| 5129188 | Method of manufacturing a thread cutting tool with wear resistant teeth | — | 1992-07-14 |
| 5038641 | Drill with improved wear inserts | Chi-Hung Shen | 1991-08-13 |
| 5038642 | Method of making drill with wear inserts | John S. Agapiou | 1991-08-13 |