Inventor
Sergey V. Efremov
Inventor
Houston, TX, US
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Vprimary
G01VGeophysics67%
E21BEarth or rock drilling33%
PatentTitleYear
7,446,308'Method of calibrating multi-channel nuclear energy spectra'20087,195,062'Measurement-while-drilling assembly using real-time toolface oriented measurements'20077,129,477'Method of processing data from a dual detector LWD density logging instrument coupled with an acoustic standoff measurement'20067,000,700'Measurement-while-drilling assembly using real-time toolface oriented measurements'2006Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2006–2008Patents assigned to BAKER HUGHES INC (4)· patent assignee history
2006–2008Based in Houston, TX, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BAKER HUGHES INC | 4 | 2006–2008 |
Locations
| Location | Patents | Span |
|---|---|---|
| Houston, Texas, US | 4 | 2006–2008 |