Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9506344 | Tunneling apparatus | Edwin Spoelstra, Nathan Meyer | 2016-11-29 |
| 8839885 | Latching configuration for a microtunneling apparatus | Robert Hoch Shuman, V, Douglas Eugene See, JR., Jeffrey James Utter, Matthew Arlen Mills | 2014-09-23 |
| 8684470 | Drill head for a tunneling apparatus | Andis Salins, Matthew Arlen Mills, Matthew Stephen Vos, Tod Michael, Robert Hoch Shuman, V | 2014-04-01 |
| 8439450 | Tunneling apparatus including vacuum and method of use | Andis Salins, Matthew Arlen Mills, Melvin Nguyen | 2013-05-14 |
| 8439132 | Microtunnelling system and apparatus | Andis Salins | 2013-05-14 |
| 8424618 | Auger boring machine | — | 2013-04-23 |
| 8256536 | Backreamer for a tunneling apparatus | Keith A. Hoelting, Matthew Stephen Vos | 2012-09-04 |
| 8151906 | Microtunnelling system and apparatus | Andis Salins | 2012-04-10 |
| 7976242 | Drill head for a microtunnelling apparatus | Andis Salins | 2011-07-12 |
| 7942217 | Cutting apparatus for a microtunnelling system | Andis Salins | 2011-05-17 |
| 7845432 | Microtunnelling system and apparatus | Andis Salins | 2010-12-07 |