Petro-Data C.A.
5Patents
0Active
5Granted
23Portfolio score
Filing activity: Aug 18, 1976 → Jul 25, 1977
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4116274A | Wireline latching apparatus and method of use | Fixed Constructions | 28 | Expired |
| US4090573A | Wireline sealing apparatus and method for use with a drill string | Fixed Constructions | 24 | Expired |
| US4108243A | Apparatus for testing earth formations | Fixed Constructions | 20 | Expired |
| US4083401A | Apparatus and methods for testing earth formations | Fixed Constructions | 19 | Expired |
| US4094359A | Apparatus and methods for testing earth formations | Fixed Constructions | 17 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.