Julian Pop
109Patents
20h-index
125Co-inventors
93Inventor score
Filing activity: Sep 23, 1988 → Jul 1, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4860581A | Down hole tool for determination of formation properties | Fixed Constructions | 330 | Expired |
| US4936139A | Down hole method for determination of formation properties | Fixed Constructions | 276 | Expired |
| US7673679B2 | Protective barriers for small devices | Fixed Constructions | 138 | Expired |
| US7654321B2 | Formation fluid sampling apparatus and methods | Fixed Constructions | 93 | Active |
| US6729399B2 | Method and apparatus for determining reservoir characteristics | Fixed Constructions | 61 | Expired |
| US6956204B2 | Determining fluid properties from fluid analyzer | Physics | 56 | Expired |
| US8714246B2 | Downhole measurement of formation characteristics while drilling | Fixed Constructions | 45 | Active |
| US6518758B1 | Methods and apparatus for measuring flow velocity in a wellbore using NMR and applications using same | Physics | 41 | Expired |
| US7081615B2 | Methods and apparatus for the downhole characterization of formation fluids | Physics | 38 | Expired |
| US8061444B2 | Methods and apparatus to form a well | Fixed Constructions | 31 | Active |
| US6832515B2 | Method for measuring formation properties with a time-limited formation test | Fixed Constructions | 30 | Expired |
| US6528995B1 | Methods and apparatus for measuring flow velocity in a wellbore using NMR and applications using same | Physics | 30 | Expired |
| US7458257B2 | Downhole measurement of formation characteristics while drilling | Fixed Constructions | 30 | Active |
| US5562458A | Interface engagement and locking system | Emerging Cross-Sectional Technologies | 27 | Expired |
| US7031841B2 | Method for determining pressure of earth formations | Fixed Constructions | 25 | Expired |
| US6538438B1 | Methods and apparatus for measuring flow velocity in a wellbore using NMR and applications using same | Physics | 24 | Expired |
| US6531869B1 | Methods and apparatus for measuring flow velocity in a wellbore using NMR and applications using same | Physics | 23 | Expired |
| US7752906B2 | Downhole measurement of formation characteristics while drilling | Fixed Constructions | 22 | Active |
| US7581440B2 | Apparatus and methods to perform downhole measurements associated with subterranean formation evaluation | Fixed Constructions | 22 | Active |
| US7222671B2 | Apparatus and method for formation evaluation | Fixed Constructions | 21 | Expired |
| US7805247B2 | System and methods for well data compression | Electricity | 20 | Active |
| US6642715B2 | Methods and apparatus for measuring flow velocity in a wellbore using NMR and applications using same | Physics | 19 | Expired |
| US8056408B2 | Downhole measurement of formation characteristics while drilling | Fixed Constructions | 19 | Active |
| US7290443B2 | Method for measuring formation properties with a time-limited formation test | Fixed Constructions | 17 | Expired |
| US7117734B2 | Method for measuring formation properties with a time-limited formation test | Fixed Constructions | 17 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.