Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8272447 | Methods and apparatus for drilling, completing and configuring U-tube boreholes | Dean Lee, Richard Thomas Hay, Nestor Humberto Gil, Rodney A. Schnell, Joe E. Hess +2 more | 2012-09-25 |
| 8146685 | Methods and apparatus for drilling, completing and configuring U-tube boreholes | Dean Lee, Richard Thomas Hay, Nesto Humberto Gil, Rodney A. Schnell, Joe E. Hess +2 more | 2012-04-03 |
| 7878270 | Methods and apparatus for drilling, completing and configuring U-tube boreholes | Dean Lee, Richard Thomas Hay, Nesto Humberto Gil, Rodney A. Schnell, Joe E. Hess +2 more | 2011-02-01 |