Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7367754 | Variable helix rotary cutting tool | Mark L. Greenwood | 2008-05-06 |
| 7153067 | Rotary cutting tool having multiple helical cutting edges with differing helix angles | Mark L. Greenwood | 2006-12-26 |