Issued Patents All Time
Showing 76–100 of 138 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7637574 | Pick assembly | David R. Hall, Ronald B. Crockett, Jeff Jepson | 2009-12-29 |
| 7635168 | Degradation assembly shield | David R. Hall, Ronald B. Crockett | 2009-12-22 |
| 7628233 | Carbide bolster | David R. Hall, Casey Webb | 2009-12-08 |
| 7624824 | Downhole hammer assembly | David R. Hall, John Bailey | 2009-12-01 |
| 7624821 | Constricting flow diverter | David R. Hall, Jonathan Marshall | 2009-12-01 |
| 7617877 | Method of manufacturing downhole tool string components | David R. Hall, Jonathon Marshall | 2009-11-17 |
| 7600823 | Pick assembly | David R. Hall, Ronald B. Crockett, Jeff Jepson | 2009-10-13 |
| 7600376 | Energy storage | David R. Hall, Francis Leany, David Wahlquist | 2009-10-13 |
| 7586191 | Integrated circuit apparatus with heat spreader | David R. Hall, H. Tracy Hall, Jr., Paul Moody, Marshall Soares | 2009-09-08 |
| 7540732 | High pressure press | David R. Hall, Timothy C. Duke, Ronald B. Crockett | 2009-06-02 |
| 7537053 | Downhole electrical connection | David R. Hall, Jonathan Marshall, Tyson J. Wilde | 2009-05-26 |
| 7537051 | Downhole power generation assembly | David R. Hall, Jonathan Marshall, Tyson J. Wilde | 2009-05-26 |
| 7535377 | Wired tool string component | David R. Hall, Paul Schramm | 2009-05-19 |
| 7527105 | Power and/or data connection in a downhole component | David R. Hall, Johnathan Marshall, Tyson J. Wilde | 2009-05-05 |
| 7517203 | High pressure press | David R. Hall, Timothy C. Duke, Ronald B. Crockett | 2009-04-14 |
| 7513764 | High pressure press | David R. Hall, Timothy C. Duke, Ronald B. Crockett | 2009-04-07 |
| 7506701 | Drill bit assembly for directional drilling | David R. Hall, Francis Leany, David Lundgreen, Daryl Wise | 2009-03-24 |
| 7497675 | Piston for a HPHT apparatus | David R. Hall, Timothy C. Duke | 2009-03-03 |
| 7488194 | Downhole data and/or power transmission system | David R. Hall, Joe Fox, Tyson J. Wilde, Paul Schramm, Jonathan Marshall | 2009-02-10 |
| 7481639 | Back-up for a HPHT apparatus | David R. Hall, Timothy C. Duke | 2009-01-27 |
| 7467937 | Preloaded threads for a high-temperature high-pressure press | David R. Hall, Ronald B. Crockett, Timothy C. Duke | 2008-12-23 |
| 7462051 | Wiper for tool string direct electrical connection | David R. Hall, Jonathan Marshall, Tyson J. Wilde | 2008-12-09 |
| D581952 | Pick | David R. Hall, Ronald B. Crockett, Jeff Jepson | 2008-12-02 |
| 7451835 | Downhole turbine | David R. Hall, Daryl Wise, David Lundgreen, Nathan Nelson | 2008-11-18 |
| 7434634 | Downhole turbine | David R. Hall, Daryl Wise, David Lundgreen, Nathan Nelson | 2008-10-14 |