Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE44427 | Apparatus for directional boring under mixed conditions | Randy R. Runquist, Mark Van Houwelingen, ReneMarcel Albert | 2013-08-13 |
| 6668946 | Backreamer | Richard K. Smith, Jr., Peter C. Rozendaal, Randy R. Runquist, Scott Rempe | 2003-12-30 |
| 6588516 | Method and apparatus for directional boring under mixed conditions | Randy R. Runquist, Mark Van Houwelingen, Rene Albert | 2003-07-08 |
| 6554082 | Apparatus and method for controlling an underground boring machine | Brian John Bischel | 2003-04-29 |
| 6454025 | Apparatus for directional boring under mixed conditions | Randy R. Runquist, Mark Van Houwelingen, ReneMarcel Albert | 2002-09-24 |
| 6382330 | Apparatus and method for controlling an underground boring machine | Brian John Bischel | 2002-05-07 |
| 6289997 | Apparatus and method for controlling an underground boring machine | Brian John Bischel | 2001-09-18 |
| 6109367 | Apparatus and method for controlling an underground boring machine | Brian John Bischel | 2000-08-29 |
| 5944121 | Apparatus and method for controlling an underground boring machine | Brian John Bischel | 1999-08-31 |
| 5778991 | Directional boring | Randy R. Runquist, Mark VanHouwelingen | 1998-07-14 |
| 5746278 | Apparatus and method for controlling an underground boring machine | Brian John Bischel | 1998-05-05 |