Issued Patents All Time
Showing 101–125 of 138 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7424928 | Apparatus, system and method for flexibly coupling sensors to a downhole tool | Dale Cox, David R. Hall, H. Tracy Hall, Jr., David Pixton | 2008-09-16 |
| 7419016 | Bi-center drill bit | David R. Hall, Francis Leany, Tyson J. Wilde | 2008-09-02 |
| 7419018 | Cam assembly in a downhole component | David R. Hall, Tyson J. Wilde | 2008-09-02 |
| 7413258 | Hollow pick shank | David R. Hall, Ronald B. Crockett, Jeff Jepson | 2008-08-19 |
| 7404725 | Wiper for tool string direct electrical connection | David R. Hall, Jonathan Marshall, Tyson J. Wilde | 2008-07-29 |
| 7392857 | Apparatus and method for vibrating a drill bit | David R. Hall | 2008-07-01 |
| 7382273 | Wired tool string component | David R. Hall, Paul Schramm | 2008-06-03 |
| 7377315 | Complaint covering of a downhole component | David R. Hall | 2008-05-27 |
| 7360610 | Drill bit assembly for directional drilling | David R. Hall, Francis Leany, David Lundgreen, Daryl Wise | 2008-04-22 |
| D566137 | Pick bolster | David R. Hall, Ronald B. Crockett, Jeff Jepson | 2008-04-08 |
| 7354262 | Strain matched threads for a high pressure high temperature press apparatus | David R. Hall, Timothy C. Duke, Joe Fox | 2008-04-08 |
| 7328755 | Hydraulic drill bit assembly | David R. Hall, Francis Leany | 2008-02-12 |
| 7252174 | Downhole seismic-sonic receiver | Dale Cox, David R. Hall, H. Tracy Hall, Jr. | 2007-08-07 |
| 7253745 | Corrosion-resistant downhole transmission system | David R. Hall, Pierre A. Smith | 2007-08-07 |
| 7243717 | Apparatus in a drill string | David R. Hall, Tracy Hall, Joe Fox, David Pixton | 2007-07-17 |
| 7198119 | Hydraulic drill bit assembly | David R. Hall, Francis Leany | 2007-04-03 |
| 7193526 | Downhole tool | David R. Hall, Andrei Muradov, David Pixton, Michael Briscoe | 2007-03-20 |
| 7190084 | Method and apparatus for generating electrical energy downhole | David R. Hall, Joe Fox | 2007-03-13 |
| 7186104 | Strain matched threads for a high pressure high temperature press apparatus | David R. Hall, Timothy C. Duke, Joe Fox | 2007-03-06 |
| 7116199 | Inductive coupler for downhole components and method for making same | David R. Hall, H. Tracy Hall, Jr., David Pixton, Cameron Sneddon, Joe Fox +1 more | 2006-10-03 |
| 7098767 | Element for use in an inductive coupler for downhole drilling components | David R. Hall, H. Tracy Hall, Jr., David Pixton, Joe Fox, Cameron Sneddon | 2006-08-29 |
| 7093654 | Downhole component with a pressure equalization passageway | David R. Hall, David Pixton, Jay Reynolds, James Breihan, Michael Briscoe | 2006-08-22 |
| 7080998 | Internal coaxial cable seal system | David R. Hall, Cameron Sneddon, Michael Briscoe | 2006-07-25 |
| 7064676 | Downhole data transmission system | David R. Hall, H. Tracy Hall, Jr., David Pixton, Joe Fox | 2006-06-20 |
| 7041908 | Data transmission system for a downhole component | David R. Hall, Tracy Hall, David Pixton, Joe Fox, Cameron Sneddon +1 more | 2006-05-09 |