Sergey Efremov
4Patents
4h-index
7Co-inventors
36Inventor score
Filing activity: Mar 27, 2003 → Dec 29, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7000700B2 | Measurement-while-drilling assembly using real-time toolface oriented measurements | Physics | 31 | Expired |
| US7195062B2 | Measurement-while-drilling assembly using real-time toolface oriented measurements | Physics | 16 | Expired |
| US7446308B2 | Method of calibrating multi-channel nuclear energy spectra | Physics | 9 | Active |
| US7129477B2 | Method of processing data from a dual detector LWD density logging instrument coupled with an acoustic standoff measurement | Physics | 5 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.