Mark Frey
40Patents
11h-index
31Co-inventors
75Inventor score
Filing activity: May 25, 1999 → Jan 11, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6577244B1 | Method and apparatus for downhole signal communication and measurement through a metal tubular | Emerging Cross-Sectional Technologies | 96 | Expired |
| US6614229B1 | System and method for monitoring a reservoir and placing a borehole using a modified tubular | Fixed Constructions | 70 | Expired |
| US6373254B1 | Method and apparatus for controlling the effect of contact impedance on a galvanic tool in a logging-while-drilling application | Physics | 53 | Expired |
| US6863127B2 | System and method for making an opening in a subsurface tubular for reservoir monitoring | Fixed Constructions | 46 | Expired |
| US7525315B2 | Resistivity logging tool and method for building the resistivity logging tool | Physics | 46 | Expired |
| US6836218B2 | Modified tubular equipped with a tilted or transverse magnetic dipole for downhole logging | Physics | 32 | Expired |
| US6975243B2 | Downhole tubular with openings for signal passage | Emerging Cross-Sectional Technologies | 29 | Expired |
| US6903660B2 | Inductively-coupled system for receiving a run-in tool | Emerging Cross-Sectional Technologies | 24 | Expired |
| US7059428B2 | Monitoring a reservoir in casing drilling operations using a modified tubular | Physics | 19 | Expired |
| US6727705B2 | Subsurface monitoring and borehole placement using a modified tubular equipped with tilted or transverse magnetic dipoles | Physics | 16 | Expired |
| US6885308B2 | Logging while tripping with a modified tubular | Emerging Cross-Sectional Technologies | 16 | Expired |
| US7916092B2 | Flexible circuit for downhole antenna | Electricity | 9 | Active |
| US7692428B2 | Retrievable formation resistivity tool | Emerging Cross-Sectional Technologies | 9 | Active |
| US8400160B2 | Combined propagation and lateral resistivity downhole tool | Physics | 7 | Active |
| US9784880B2 | Compensated deep propagation measurements with differential rotation | Physics | 5 | Active |
| US7187297B2 | Methods for sealing openings in tubulars | Emerging Cross-Sectional Technologies | 5 | Expired |
| US9448324B2 | Gain compensated directional propagation measurements | Physics | 4 | Active |
| US7759942B2 | Lightweight, low cost structure for formation conductivity measuring instrument | Physics | 4 | Active |
| US9541666B2 | Electromagnetic logging while drilling tool | Physics | 4 | Active |
| US9618647B2 | Gain compensated symmetrized and anti-symmetrized angles | Physics | 3 | Active |
| US9581721B2 | Method for making downhole electromagnetic logging while drilling measurements | Physics | 3 | Active |
| US9804292B2 | Term by term gain calibration of triaxial propagation measurements | Physics | 3 | Active |
| US11112523B2 | Calibration of electromagnetic measurement tool | Physics | 2 | Active |
| US10302805B2 | System and methods for obtaining compensated electromagnetic measurements | Fixed Constructions | 2 | Active |
| US9835755B2 | Full tensor gain compensated propagation measurements | Physics | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.