Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7854258 | Self-anchoring device with force amplification | Todor Sheiretov, Dwight C. Chilcoat, Carl J. Roy, Matthew Billingham, Franz Aguirre | 2010-12-21 |
| 7516782 | Self-anchoring device with force amplification | Todor Sheiretov, Dwight C. Chilcoat, Carl J. Roy, Matthew Billingham, Franz Aguirre | 2009-04-14 |
| 7185714 | Traction control for downhole tractor | Falk Doering, Todor Sheiretov, Benoit Foubert | 2007-03-06 |
| 7143843 | Traction control for downhole tractor | Falk Doering, Todor Sheiretov, Benoit Foubert | 2006-12-05 |