Schlumberger Technical Corporation
5Patents
0Active
5Granted
28Portfolio score
Filing activity: Jun 8, 1981 → Mar 29, 1994
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5505134A | Perforating gun having a plurality of charges including a corresponding plurality of exploding foil or exploding bridgewire initiator apparatus responsive to a pulse of current for simultaneously detonating the plurality of charges | Mechanical Engineering; Lighting; Heating | 70 | Expired |
| US4450768A | Shaped charge and method of making it | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US4439831A | Digital induction logging system including autocalibration | Physics | 20 | Expired |
| US4433573A | Method and apparatus for determining the flow characteristics of a fluid in a well | Physics | 11 | Expired |
| US4412207A | Digital induction logging tool including a floating point A/D | Physics | 9 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.