Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9617127 | Drum assembly and method of assembling the drum assembly | Jeffrey Fuller, Sebastien Ives, Guillaume Parmentier, Judicael Albert | 2017-04-11 |
| 7334642 | Constant force actuator | Carl J. Roy | 2008-02-26 |
| 7222682 | Chain drive system | Wade DuPree | 2007-05-29 |
| 7185714 | Traction control for downhole tractor | Todor Sheiretov, Robin A. Ewan, Benoit Foubert | 2007-03-06 |
| 7156192 | Open hole tractor with tracks | Julio C. Guerrero, Carl J. Roy, Paul Beguin | 2007-01-02 |
| 7143843 | Traction control for downhole tractor | Todor Sheiretov, Robin A. Ewan, Benoit Foubert | 2006-12-05 |
| 6984306 | Method for removing inorganic compounds from a section of soil | Niels Doering | 2006-01-10 |
| 6321837 | Method and device for the in-situ elimination of hazardous substances from the groundwater and perched water | Niels Doering | 2001-11-27 |