Issued Patents All Time
Showing 26–37 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7641003 | Downhole hammer assembly | David R. Hall, Scott Dahlgren | 2010-01-05 |
| 7641002 | Drill bit | David R. Hall, Casey Webb | 2010-01-05 |
| 7624824 | Downhole hammer assembly | David R. Hall, Scott Dahlgren | 2009-12-01 |
| 7571782 | Stiffened blade for shear-type drill bit | David R. Hall | 2009-08-11 |
| 7549489 | Jack element with a stop-off | David R. Hall, Ronald B. Crockett | 2009-06-23 |
| 7527110 | Percussive drill bit | David R. Hall, Ronald B. Crockett, Joe Fox | 2009-05-05 |
| 7523794 | Wear resistant assembly | David R. Hall, Jeff Jepson, Ronald B. Crockett, Joe Fox | 2009-04-28 |
| 7451944 | Replaceable segmented wear liner | David R. Hall, Ronald B. Crockett, Jeff Jepson | 2008-11-18 |
| D554162 | Diamond enhanced cutting element | David R. Hall, Ronald B. Crockett, Matt Kudla | 2007-10-30 |
| 5123337 | Sous vide reheating device | Stanislas Vilgrain, William S. Smith | 1992-06-23 |
| 5097759 | Sous vide reheating device | Stanislas Vilgrain, William S. Smith | 1992-03-24 |
| 4756374 | Vehicle load sensing device | Robert Lawrence Munn, Henry A. Thenikl | 1988-07-12 |