Gregory N. Gilbert
37Patents
20h-index
42Co-inventors
85Inventor score
Filing activity: Aug 20, 1987 → Jun 18, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6325146A | Methods of downhole testing subterranean formations and associated apparatus therefor | Fixed Constructions | 88 | Expired |
| US5230244A | Formation flush pump system for use in a wireline formation test tool | Fixed Constructions | 75 | Expired |
| US4879900A | Hydraulic system in formation test tools having a hydraulic pad pressure priority system and high speed extension of the setting pistons | Fixed Constructions | 49 | Expired |
| US6527052B2 | Methods of downhole testing subterranean formations and associated apparatus therefor | Fixed Constructions | 49 | Expired |
| US6446720B1 | Methods of downhole testing subterranean formations and associated apparatus therefor | Fixed Constructions | 48 | Expired |
| US5040619A | Wireline supported perforating gun enabling oriented perforations | Fixed Constructions | 44 | Expired |
| US5211714A | Wireline supported perforating gun enabling oriented perforations | Fixed Constructions | 43 | Expired |
| US6729398B2 | Methods of downhole testing subterranean formations and associated apparatus therefor | Fixed Constructions | 42 | Expired |
| US7191672B2 | Single phase sampling apparatus and method | Physics | 37 | Expired |
| US6446719B2 | Methods of downhole testing subterranean formations and associated apparatus therefor | Fixed Constructions | 37 | Expired |
| US7216533B2 | Methods for using a formation tester | Fixed Constructions | 36 | Expired |
| US7086463B2 | Methods of downhole testing subterranean formations and associated apparatus therefor | Fixed Constructions | 35 | Expired |
| US7204309B2 | MWD formation tester | Fixed Constructions | 30 | Expired |
| US7966875B2 | Methods and apparatus for measuring formation properties | Fixed Constructions | 29 | Active |
| US5626200A | Screen and bypass arrangement for LWD tool turbine | Fixed Constructions | 28 | Expired |
| US4845982A | Hydraulic circuit for use in wireline formation tester | Fixed Constructions | 24 | Expired |
| US7021375B2 | Methods of downhole testing subterranean formations and associated apparatus therefor | Fixed Constructions | 24 | Expired |
| US5906354A | Ball valve for lethal gas or fluid service | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US5483895A | Detonation system for detonating explosive charges in well | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US7260985B2 | Formation tester tool assembly and methods of use | Physics | 21 | Expired |
| US7073579B2 | Methods of downhole testing subterranean formations and associated apparatus therefor | Fixed Constructions | 18 | Expired |
| US5375659A | Sonde supported operating system for control of formation production fluid flow | Fixed Constructions | 14 | Expired |
| US8235106B2 | Formation testing and sampling apparatus and methods | Fixed Constructions | 14 | Active |
| US7603897B2 | Downhole probe assembly | Physics | 12 | Expired |
| US7395879B2 | MWD formation tester | Fixed Constructions | 9 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.