Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8561726 | Vertical drilling system for controlling deviation | David Lane Evans, Glenn Patrick Coty, Ronald Thorsten Eckmann | 2013-10-22 |
| 8210282 | System and method for preventing slippage and rotation of component alone a tubular shaft | Michael Louis David, Douglas Dewayne Eggleston, Paul Freeman Noe | 2012-07-03 |
| 8061451 | Vertical drilling system for controlling deviation | David Lane Evans, Glenn Patrick Coty, Ronald Thorsten Eckmann | 2011-11-22 |
| 7658243 | System and method for preventing slippage and rotation of components in a tubular housing | Michael Louis David, Douglas Dewayne Eggleston, Paul Freeman Noe | 2010-02-09 |