Patents per Year
Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8567530 | Collapsible rock head and associated structure | — | 2013-10-29 |
| 7798252 | Method and apparatus for providing a continuous stroke auger boring machine | — | 2010-09-21 |
| 7779938 | Swivel for use in installing large diameter casing | — | 2010-08-24 |
| 7753140 | Auger boring machine with included pilot tube steering mechanism and method of use | — | 2010-07-13 |
| 7748479 | Box gusseted earth auger | — | 2010-07-06 |
| 7617888 | Pilot tube system and attachment mechanism for auger boring machine | — | 2009-11-17 |
| 7614461 | Lubricated pilot tubes for use with auger boring machine pilot steering system and use thereof | — | 2009-11-10 |
| 6715565 | Subterranean boring machine | — | 2004-04-06 |
| 6688408 | Auger drill directional control system | Russell J. Miller | 2004-02-10 |
| 6374929 | Subterranean boring machine | — | 2002-04-23 |
| 5765321 | Ground engaging stake | — | 1998-06-16 |