Issued Patents All Time
Showing 26–50 of 79 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7147068 | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells | — | 2006-12-12 |
| 7108084 | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells | — | 2006-09-19 |
| 7100710 | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells | — | 2006-09-05 |
| 7048050 | Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells | James E. Chitwood | 2006-05-23 |
| 7048953 | Methods and apparatus to prevent, treat and cure infections of the human respiratory system by pathogens causing severe acute respiratory syndrome (SARS) | Marilyn L. Vail | 2006-05-23 |
| 7040420 | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells | — | 2006-05-09 |
| 7036610 | Apparatus and method for completing oil and gas wells | — | 2006-05-02 |
| 7032658 | High power umbilicals for electric flowline immersion heating of produced hydrocarbons | James E. Chitwood, Damir S. Skerl, Robert L. Dekle, William George Crossland | 2006-04-25 |
| 7013997 | Methods and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells | — | 2006-03-21 |
| 6987386 | Determining resistivity of a geological formation using circuitry located within a borehole casing | — | 2006-01-17 |
| 6962217 | Rotary drill bit compensating for changes in hardness of geological formations | — | 2005-11-08 |
| 6896653 | Personal pelvic viewer | Marilyn L. Vail | 2005-05-24 |
| 6868906 | Closed-loop conveyance systems for well servicing | James E. Chitwood | 2005-03-22 |
| 6857486 | High power umbilicals for subterranean electric drilling machines and remotely operated vehicles | James E. Chitwood, William George Crossland, Damir S. Skerl, Robert L. Dekle | 2005-02-22 |
| 6577144 | Electrical voltages and resistances measured to inspect metallic cased wells and pipelines | Steven Thomas Momii | 2003-06-10 |
| 6547017 | Rotary drill bit compensating for changes in hardness of geological formations | — | 2003-04-15 |
| 6450028 | Precision gravity gradiometer optically measuring density variations in gases | — | 2002-09-17 |
| 6447816 | Methods and apparatus to prevent colds, flus, and infections of the human respiratory system | Marilyn L. Vail | 2002-09-10 |
| 6397946 | Closed-loop system to compete oil and gas wells closed-loop system to complete oil and gas wells c | — | 2002-06-04 |
| 6263987 | One pass drilling and completion of extended reach lateral wellbores with drill bit attached to drill string to produce hydrocarbons from offshore platforms | — | 2001-07-24 |
| 6249122 | Electrical voltages and resistances measured to inspect metallic cased wells and pipelines | Steven Thomas Momii | 2001-06-19 |
| 6246240 | Determining resistivity of a formation adjacent to a borehole having casing with an apparatus having all current conducting electrodes within the cased well | — | 2001-06-12 |
| 6189621 | Smart shuttles to complete oil and gas wells | — | 2001-02-20 |
| 6158531 | One pass drilling and completion of wellbores with drill bit attached to drill string to make cased wellbores to produce hydrocarbons | — | 2000-12-12 |
| 6157195 | Formation resistivity measurements from within a cased well used to quantitatively determine the amount of oil and gas present | — | 2000-12-05 |