Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7854258 | Self-anchoring device with force amplification | Todor Sheiretov, Dwight C. Chilcoat, Robin A. Ewan, Matthew Billingham, Franz Aguirre | 2010-12-21 |
| 7516782 | Self-anchoring device with force amplification | Todor Sheiretov, Dwight C. Chilcoat, Robin A. Ewan, Matthew Billingham, Franz Aguirre | 2009-04-14 |
| 7334642 | Constant force actuator | Falk Doering | 2008-02-26 |
| 7156192 | Open hole tractor with tracks | Julio C. Guerrero, Falk Doering, Paul Beguin | 2007-01-02 |
| 6920936 | Constant force actuator | Todor Sheiretov, Roger A. Post, Joseph F. Cordera | 2005-07-26 |
| 6629568 | Bi-directional grip mechanism for a wide range of bore sizes | Roger A. Post, Todor Sheiretov, Joseph F. Cordera | 2003-10-07 |
| 6179055 | Conveying a tool along a non-vertical well | Alan J. Sallwasser, Roger A. Post | 2001-01-30 |