Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9951606 | Directional drilling using mechanical waves detectors | Jason Lueke, Hong Ting Derek Choi, Shu Jun Shan | 2018-04-24 |
| 8789891 | Method and apparatus for creating a planar cavern | Steven W. Wentworth, Robert F. Crane | 2014-07-29 |
| 8646846 | Method and apparatus for creating a planar cavern | Steven W. Wentworth, Robert F. Crane | 2014-02-11 |
| 6327919 | Method for taking a soil sample from a horizontal borehole | Erez Allouche, Kevin William Biggar, Casey Edwin Como | 2001-12-11 |