Van Houwelingen; Mark
Patent Applications and Registrations
Patent applications and USPTO patent grants for Van Houwelingen; Mark.The latest application filed is for "method and apparatus for directional boring under mixed conditions".
- Van Houwelingen; Mark - Knoxville IA US
| Patent | Date |
|---|---|
| Apparatus for directional boring under mixed conditions Grant RE44,427 - Runquist , et al. August 13, 2 | 2013-08-13 |
| Steerable fluid hammer Grant 6,659,202 - Runquist , et al. December 9, 2 | 2003-12-09 |
| Method and apparatus for directional boring under mixed conditions Grant 6,588,516 - Runquist , et al. July 8, 2 | 2003-07-08 |
| Method and apparatus for directional boring under mixed conditions App 20030024739 - Runquist, Randy R. ; et al. | 2003-02-06 |
| Directional drilling machine and method of directional drilling Grant 6,491,115 - Van Houwelingen , et al. December 10, 2 | 2002-12-10 |
| Apparatus for directional boring under mixed conditions Grant 6,454,025 - Runquist , et al. September 24, 2 | 2002-09-24 |
| Steerable fluid hammer App 20020084109 - Runquist, Randy ; et al. | 2002-07-04 |
| Directional drilling machine and method of directional drilling Grant 6,357,537 - Runquist , et al. March 19, 2 | 2002-03-19 |
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