Issued Patents All Time
Showing 76–100 of 132 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7753303 | Rotary shaft impactor | David R. Hall, Joe Fox | 2010-07-13 |
| 7744164 | Shield of a degradation assembly | David R. Hall, Scott Dahlgren | 2010-06-29 |
| 7740414 | Milling apparatus for a paved surface | David R. Hall | 2010-06-22 |
| 7690138 | Rolling assembly mounted on a trencher | David R. Hall, Francis Leany, Jeff Jepson, Tyson J. Wilde | 2010-04-06 |
| 7681338 | Rolling assembly and pick assembly mounted on a trencher | David R. Hall, Sigmar Tobias | 2010-03-23 |
| 7676968 | Roller assembly | David R. Hall, Sigmar Tobias | 2010-03-16 |
| 7669938 | Carbide stem press fit into a steel body of a pick | David R. Hall, John Bailey | 2010-03-02 |
| 7669674 | Degradation assembly | David R. Hall, Scott Dahlgren | 2010-03-02 |
| 7665552 | Superhard insert with an interface | David R. Hall | 2010-02-23 |
| 7637574 | Pick assembly | David R. Hall, Scott Dahlgren, Jeff Jepson | 2009-12-29 |
| 7635168 | Degradation assembly shield | David R. Hall, Scott Dahlgren | 2009-12-22 |
| 7600823 | Pick assembly | David R. Hall, Scott Dahlgren, Jeff Jepson | 2009-10-13 |
| 7594703 | Pick with a reentrant | David R. Hall, Jeff Jepson | 2009-09-29 |
| 7588102 | High impact resistant tool | David R. Hall | 2009-09-15 |
| 7575425 | Assembly for HPHT processing | David R. Hall, Jacob S. Waldron, Joe Fox | 2009-08-18 |
| 7568770 | Superhard composite material bonded to a steel body | David R. Hall, Jeff Jepson, Joe Fox | 2009-08-04 |
| 7549489 | Jack element with a stop-off | David R. Hall, John Bailey | 2009-06-23 |
| 7540732 | High pressure press | David R. Hall, Timothy C. Duke, Scott Dahlgren | 2009-06-02 |
| 7527110 | Percussive drill bit | David R. Hall, Joe Fox, John Bailey | 2009-05-05 |
| 7523794 | Wear resistant assembly | David R. Hall, Jeff Jepson, John Bailey, Joe Fox | 2009-04-28 |
| 7517203 | High pressure press | David R. Hall, Timothy C. Duke, Scott Dahlgren | 2009-04-14 |
| 7513764 | High pressure press | David R. Hall, Timothy C. Duke, Scott Dahlgren | 2009-04-07 |
| 7503628 | Formation breaking assembly | David R. Hall, Robert P. Chase, Jr. | 2009-03-17 |
| 7475948 | Pick with a bearing | David R. Hall, Jeff Jepson, Francis Leany | 2009-01-13 |
| 7469971 | Lubricated pick | David R. Hall, Jeff Jepson, Francis Leany | 2008-12-30 |