Michael O'Keefe
22Patents
10h-index
56Co-inventors
78Inventor score
Filing activity: Jun 14, 1993 → Mar 14, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7305306B2 | System and methods of deriving fluid properties of downhole fluids and uncertainty thereof | Fixed Constructions | 34 | Expired |
| US7996154B2 | Methods and apparatus for analysis of downhole asphaltene gradients and applications thereof | Physics | 33 | Active |
| US5352132A | Extension cord | Electricity | 30 | Expired |
| US6428339B1 | Lockable electrical cord connector unit | Electricity | 26 | Expired |
| US7788972B2 | Method of downhole characterization of formation fluids, measurement controller for downhole characterization of formation fluids, and apparatus for downhole characterization of formation fluids | Fixed Constructions | 23 | Active |
| US6875040B1 | Lockable electric power cord adapter | Electricity | 21 | Expired |
| US8805617B2 | Methods and apparatus for characterization of petroleum fluids contaminated with drilling mud | Fixed Constructions | 18 | Active |
| US6315593A | Multiple gang electrical connector assembly | Electricity | 16 | Expired |
| US7614294B2 | Systems and methods for downhole fluid compatibility | Fixed Constructions | 16 | Active |
| US6981888B2 | Lockable electric power cord adapter | Electricity | 14 | Expired |
| US8256283B2 | Method of downhole characterization of formation fluids, measurement controller for downhole characterization of formation fluids, and apparatus for downhole characterization of formation fluids | Fixed Constructions | 9 | Active |
| US9303510B2 | Downhole fluid analysis methods | Fixed Constructions | 7 | Active |
| US6293568A | Storing and transporting flexible sheets | Emerging Cross-Sectional Technologies | 5 | Expired |
| US7644611B2 | Downhole fluid analysis for production logging | Fixed Constructions | 5 | Active |
| US7874355B2 | Methods and apparatus for removing deposits on components in a downhole tool | Fixed Constructions | 4 | Active |
| US6505842B2 | Storing and transporting flexible sheets | Emerging Cross-Sectional Technologies | 4 | Expired |
| US8708049B2 | Downhole mixing device for mixing a first fluid with a second fluid | Fixed Constructions | 4 | Active |
| US8714254B2 | Method for mixing fluids downhole | Fixed Constructions | 2 | Active |
| US8202579B2 | Water-resistant fabrics and methods of preparation thereof | Textiles; Paper | 1 | Active |
| US8022707B2 | Methods and apparatus for determining a presence of a non-conductive coating on electrodes in downhole fluid resistivity measurement devices | Physics | 0 | Active |
| US6749206B1 | Container for recyclable materials | Emerging Cross-Sectional Technologies | 0 | Expired |
| US8555696B2 | Methods of calibrating a fluid analyzer for use in a wellbore | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.