John Rasmus
47Patents
10h-index
80Co-inventors
78Inventor score
Filing activity: Apr 29, 1988 → Feb 16, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5368108A | Optimized drilling with positive displacement drilling motors | Fixed Constructions | 53 | Expired |
| US4833914A | Pore pressure formation evaluation while drilling | Fixed Constructions | 40 | Expired |
| US4949575A | Formation volumetric evaluation while drilling | Fixed Constructions | 40 | Expired |
| US8484858B2 | Wall contact caliper instruments for use in a drill string | Fixed Constructions | 38 | Active |
| US8442769B2 | Method of determining and utilizing high fidelity wellbore trajectory | Fixed Constructions | 22 | Active |
| US6885942B2 | Method to detect and visualize changes in formation parameters and borehole condition | Physics | 22 | Expired |
| US8965703B2 | Applications based on fluid properties measured downhole | Fixed Constructions | 21 | Active |
| US5654503A | Method and apparatus for improved measurement of drilling conditions | Fixed Constructions | 13 | Expired |
| US8899349B2 | Methods for determining formation strength of a wellbore | Fixed Constructions | 12 | Active |
| US8024868B2 | Wall contact caliper instruments for use in a drill string | Fixed Constructions | 10 | Active |
| US9404327B2 | Methods for evaluating borehole volume changes while drilling | Physics | 4 | Active |
| US9394783B2 | Methods for evaluating inflow and outflow in a subterranean wellbore | Physics | 4 | Active |
| US9175559B2 | Identification of casing collars while drilling and post drilling using LWD and wireline measurements | Fixed Constructions | 4 | Active |
| US9047689B2 | Method and apparatus for visualizing multi-dimensional well logging data with shapelets | Physics | 3 | Active |
| US9228430B2 | Methods for evaluating cuttings density while drilling | Fixed Constructions | 2 | Active |
| US8473212B2 | Log processing in highly deviated wellbores | Physics | 2 | Active |
| US8857510B2 | System and method for determining movement of a drilling component in a wellbore | Fixed Constructions | 2 | Active |
| US9134451B2 | Interval density pressure management methods | Physics | 2 | Active |
| US10067257B2 | Multi-frequency electromagnetic tensor measurements | Physics | 1 | Active |
| US10036827B2 | Petrophysically-consistent calibration of full-tensor electromagnetic induction tools | Physics | 1 | Active |
| US10053979B2 | Characterization of non-radioactive laced cement using logging while drilling and wireline nuclear measurements | Physics | 1 | Active |
| US10451769B2 | Method for determining petrophysical properties from logging measurements | Physics | 1 | Active |
| US9091781B2 | Method for estimating formation permeability using time lapse measurements | Physics | 1 | Active |
| US10360282B2 | Method and apparatus for evaluation of hydrocarbon-bearing reservoirs | Physics | 1 | Active |
| US11346833B2 | Reservoir fluid characterization system | Physics | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.