Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6761231 | Rotary driven drilling hammer | Matthew Dock, Floyd R. Gunsaulis | 2004-07-13 |
| 6739413 | Using a rotating inner member to drive a tool in a hollow outer member | Matthew Dock | 2004-05-25 |
| 6741761 | Method for achieving improved transmission performance over fiber using a Mach-Zehnder modulator | — | 2004-05-25 |