Issued Patents All Time
Showing 26–39 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7373785 | Geo-thermal heat exchanging system facilitating the transfer of heat energy using coaxial-flow heat exchanging structures installed in the earth for introducing turbulence into the flow of the aqueous-based heat transfer fluid flowing along the outer flow channel | John E. Kidwell | 2008-05-20 |
| 7370488 | Geo-thermal heat exchanging system facilitating the transfer of heat energy using coaxial-flow heat exchanging structures installed in the earth for introducing turbulence into the flow of the aqueous-based heat transfer fluid flowing along the outer flow channel | John E. Kidwell | 2008-05-13 |
| 7363769 | Electromagnetic signal transmission/reception tower and accompanying base station employing system of coaxial-flow heat exchanging structures installed in well bores to thermally control the environment housing electronic equipment within the base station | John E. Kidwell | 2008-04-29 |
| 7326330 | Method and apparatus for scale and biofilm control | Rodney Herrington | 2008-02-05 |
| 6752972 | Plasma processing method and apparatus | Rick B. Spielman, Robert R. Schiewe | 2004-06-22 |
| 6382321 | Dewatering natural gas-assisted pump for natural and hydrocarbon wells | Andrew Bates | 2002-05-07 |
| 6311791 | Hydraulic underreamer and sections for use therein | Stephen D. McCoy | 2001-11-06 |
| 6279653 | Heavy oil viscosity reduction and production | Dennis C. Wegener, David R. Zornes, Daniel R. Maloney, Michael E. Vienot | 2001-08-28 |
| 6241030 | Hydraulic underreamer and sections for use therein | Stephen D. McCoy | 2001-06-05 |
| 6237702 | Hydraulic underreamer and sections for use thereof | Stephen D. McCoy | 2001-05-29 |
| 6230799 | Ultrasonic downhole radiator and method for using same | Julie C. Slaughter | 2001-05-15 |
| 6223839 | Hydraulic underreamer and sections for use therein | Stephen D. McCoy | 2001-05-01 |
| 6186228 | Methods and apparatus for enhancing well production using sonic energy | Dennis C. Wegener, Daniel R. Maloney, David R. Zornes, Dave E. Reese | 2001-02-13 |
| 6138777 | Hydraulic underreamer and sections for use therein | Stephen D. McCoy | 2000-10-31 |