Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7780631 | Apparatus and method for penetration with shaft having a sensor for sensing penetration depth | Paul Lum, Hewlett E. Melton, Jr., Michael Greenstein, Dominique Freeman | 2010-08-24 |
| 6391005 | Apparatus and method for penetration with shaft having a sensor for sensing penetration depth | Paul Lum, Hewlett E. Melton, Jr., Michael Greenstein | 2002-05-21 |