Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5664891 | Downhole bearing assembly which accommodates compressive and tensile axial | David Kutinsky, Raymond Samuel Livingstone | 1997-09-09 |
| 5495901 | Surface adjustable adjustable bent housing | David Kutinsky, Murray David Wilson, Winston Smith | 1996-03-05 |
| 5125463 | Adjustable bent sub | Raymond Samuel Livingstone | 1992-06-30 |