Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8893823 | Methods and apparatus for drilling directional wells by percussion method | Huy D. Bui | 2014-11-25 |
| 7857076 | Force balancing system for use with a well bore tool | Huy D. Bui, Kenneth Ahlhorn | 2010-12-28 |
| 7832502 | Methods and apparatus for drilling directional wells by percussion method | Huy D. Bui | 2010-11-16 |
| 5803187 | Rotary-percussion drill apparatus and method | — | 1998-09-08 |