Phil Barbee
31Patents
11h-index
3Co-inventors
68Inventor score
Filing activity: Aug 12, 1993 → Oct 16, 2023
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7918278B2 | Method and apparatus for dropping a pump down plug or ball | Fixed Constructions | 45 | Active |
| US8256515B2 | Method and apparatus for dropping a pump down plug or ball | Fixed Constructions | 39 | Active |
| US7841410B2 | Method and apparatus for dropping a pump down plug or ball | Fixed Constructions | 29 | Active |
| US5620050A | Method for setting hydraulic packers that enable placement of gravel pack in a downhole oil and gas well | Fixed Constructions | 28 | Expired |
| US8651174B2 | Method and apparatus for dropping a pump down plug or ball | Fixed Constructions | 28 | Active |
| US7607481B2 | Method and apparatus for dropping a pump down plug or ball | Fixed Constructions | 28 | Active |
| US8997850B2 | Method and apparatus for dropping a pump down plug or ball | Fixed Constructions | 27 | Active |
| US9341040B2 | Method and apparatus for dropping a pump down plug or ball | Fixed Constructions | 17 | Active |
| US5370180A | Downhole oil and gas well jacking tool for use with coil tubing unit | Fixed Constructions | 14 | Expired |
| US5377749A | Apparatus for setting hydraulic packers and for placing a gravel pack in a downhole oil and gas well | Fixed Constructions | 14 | Expired |
| US5522463A | Downhole oil well pump apparatus | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US9689226B2 | Method and apparatus for dropping a pump down plug or ball | Fixed Constructions | 11 | Active |
| US8622130B2 | Method and apparatus for dropping a pump down plug or ball | Fixed Constructions | 10 | Active |
| US7172028B2 | Reciprocating slickline pump | Fixed Constructions | 9 | Expired |
| US8215396B2 | Method and apparatus for dropping a pump down plug or ball | Fixed Constructions | 9 | Active |
| US8939209B2 | Method and apparatus for dropping a pump down plug or ball | Fixed Constructions | 8 | Active |
| US9410395B2 | Method and apparatus for dropping a pump down plug or ball | Fixed Constructions | 7 | Active |
| US8573301B2 | Method and apparatus for dropping a pump down plug or ball | Fixed Constructions | 7 | Active |
| US10208556B2 | Method and apparatus for dropping a pump down plug or ball | Fixed Constructions | 7 | Active |
| US9863212B2 | Method and apparatus for dropping a pump down plug or ball | Fixed Constructions | 6 | Active |
| US10196876B2 | Method and apparatus for dropping a pump down plug or ball | Fixed Constructions | 5 | Active |
| US10550661B2 | Method and apparatus for dropping a pump down plug or ball | Fixed Constructions | 5 | Active |
| US10633950B2 | Method and apparatus for dropping a pump down plug or ball | Fixed Constructions | 4 | Active |
| US10968719B2 | Method and apparatus for dropping a pump down plug or ball | Fixed Constructions | 3 | Active |
| US11519243B2 | Method and apparatus for dropping a pump down plug or ball | Fixed Constructions | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.