Benoit Froelich
21Patents
10h-index
31Co-inventors
75Inventor score
Filing activity: Dec 17, 1982 → Jun 8, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4951267A | Method and apparatus for multipole acoustic logging | Physics | 49 | Expired |
| US8605548B2 | Bi-directional wireless acoustic telemetry methods and systems for communicating data along a pipe | Fixed Constructions | 38 | Active |
| US4661933A | Method and apparatus for acoustically measuring the transverse dimensions of a borehole | Emerging Cross-Sectional Technologies | 23 | Expired |
| US6474439B1 | Dipole logging tool | Physics | 21 | Expired |
| US7522471B2 | Multimode acoustic imaging in cased wells | Fixed Constructions | 18 | Expired |
| US7345594B2 | Noise attenuation apparatus for borehole telemetry | Physics | 16 | Expired |
| US7149146B2 | Determination of the impedance of a material behind a casing combining two sets of ultrasonic measurements | Fixed Constructions | 16 | Expired |
| US6119070A | Method for acoustically measuring a fluid flow rate | Physics | 11 | Expired |
| US6526838B1 | Ultrasonic fluid meter with improved resistance to parasitic ultrasound waves | Physics | 10 | Expired |
| US5969263A | Ultrasonic fluid counter for attenuating parasitic ultrasonic waves | Physics | 10 | Expired |
| US6536946B1 | Device and method for directly measuring calorific energy contained in a fuel gas | Physics | 7 | Expired |
| US5226018A | Geophysical prospecting method using pseudo-random pulse sequences | Physics | 6 | Expired |
| US8767506B2 | Using higher order harmonics to determine acoustic impedance of material behind borehole casings | Physics | 4 | Active |
| US9594177B2 | Using higher order harmonics to determine acoustic impedance of material behind borehole casings | Physics | 3 | Active |
| US8689904B2 | Detection of gas influx into a wellbore | Fixed Constructions | 3 | Active |
| US7689362B2 | Determining the impedance of material behind a casing in a borehole | Physics | 3 | Expired |
| US8750075B2 | Acoustic transceiver with adjacent mass guided by membranes | Emerging Cross-Sectional Technologies | 3 | Active |
| US10036244B2 | Acoustic transceiver with adjacent mass guided by membranes | Emerging Cross-Sectional Technologies | 2 | Active |
| US9441479B2 | Mechanical filter for acoustic telemetry repeater | Fixed Constructions | 2 | Active |
| US9822627B2 | Systems and methods for downhole cement evaluation | Physics | 1 | Active |
| US9110192B2 | Methods and apparatus to identify layer boundaries in subterranean formations | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.