Robert J. Schroeder
23Patents
14h-index
55Co-inventors
84Inventor score
Filing activity: Jun 1, 1990 → Sep 13, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5166747A | Apparatus and method for analyzing the composition of formation fluids | Physics | 97 | Expired |
| US5841131A | Fiber optic pressure transducers and pressure sensing system incorporating same | Physics | 95 | Expired |
| US6218661A | Methods and apparatus for mechanically enhancing the sensitivity of transversely loaded fiber optic sensors | Physics | 44 | Expired |
| US6304686A | Methods and apparatus for measuring differential pressure with fiber optic sensor systems | Physics | 43 | Expired |
| US6751556B2 | Technique and system for measuring a characteristic in a subterranean well | Physics | 40 | Expired |
| US6898339B2 | Multiple mode pre-loadable fiber optic pressure and temperature sensor | Physics | 36 | Expired |
| US6246048A | Methods and apparatus for mechanically enhancing the sensitivity of longitudinally loaded fiber optic sensors | Physics | 35 | Expired |
| US7126680B2 | Method for measuring and calibrating measurements using optical fiber distributed sensor | Physics | 20 | Expired |
| US7695629B2 | Microfluidic separator | Emerging Cross-Sectional Technologies | 20 | Active |
| US5790185A | Video inspection or logging tool | Physics | 19 | Expired |
| US7215416B2 | Method for measuring using optical fiber distributed sensor | Physics | 18 | Active |
| US6363180B1 | Methods and apparatus for enhancing dynamic range, sensitivity, accuracy, and resolution in fiber optic sensor systems | Physics | 15 | Expired |
| US8564768B2 | High pressure and high temperature optical spectroscopy cell using spherical surfaced lenses in direct contact with a fluid pathway | Physics | 15 | Active |
| US8910514B2 | Systems and methods of determining fluid properties | Fixed Constructions | 14 | Active |
| US7933018B2 | Spectral imaging for downhole fluid characterization | Physics | 13 | Expired |
| US7279678B2 | Method and apparatus for composition analysis in a logging environment | Physics | 12 | Expired |
| US6946645B2 | Measuring system with sweeping comb filter and multiplexer | Physics | 10 | Expired |
| US9291585B2 | Apparatus and method for phase equilibrium with in-situ sensing | Physics | 10 | Active |
| US7658226B2 | Method of monitoring fluid placement during stimulation treatments | Physics | 6 | Active |
| US7799278B2 | Microfluidic system for chemical analysis | Performing Operations; Transporting | 6 | Active |
| US8786860B2 | Measurement of liquid fraction dropout using micropatterned surfaces | Physics | 1 | Active |
| US11433611B2 | Dual hob drive quick release high flow filament extruder | Performing Operations; Transporting | 1 | Active |
| US8389054B2 | Fabrication technique for metallic devices with embedded optical elements, optical devices, or optical and electrical feedthroughs | Chemistry; Metallurgy | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.