Jonathan W. Brown
26Patents
13h-index
53Co-inventors
84Inventor score
Filing activity: Aug 17, 1992 → Jan 24, 2018
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6659177B2 | Reduced contamination sampling | Fixed Constructions | 72 | Expired |
| US6467544B1 | Sample chamber with dead volume flushing | Fixed Constructions | 67 | Expired |
| US6688390B2 | Formation fluid sampling apparatus and method | Fixed Constructions | 63 | Expired |
| US5337822A | Well fluid sampling tool | Fixed Constructions | 59 | Expired |
| US7458252B2 | Fluid analysis method and apparatus | Fixed Constructions | 32 | Expired |
| US6668924B2 | Reduced contamination sampling | Fixed Constructions | 32 | Expired |
| US7178591B2 | Apparatus and method for formation evaluation | Fixed Constructions | 30 | Expired |
| US7062958B2 | Receptacle for sampling downhole | Physics | 28 | Expired |
| US5609205A | Well fluid sampling tool | Fixed Constructions | 25 | Expired |
| US7243536B2 | Formation fluid sampling apparatus and method | Fixed Constructions | 25 | Expired |
| US5901788A | Well fluid sampling tool and well fluid sampling method | Fixed Constructions | 24 | Expired |
| US7222671B2 | Apparatus and method for formation evaluation | Fixed Constructions | 21 | Expired |
| US7428925B2 | Wellbore formation evaluation system and method | Fixed Constructions | 18 | Expired |
| US8033329B2 | System and method for connecting wired drill pipe | Fixed Constructions | 13 | Active |
| US7934547B2 | Apparatus and methods to control fluid flow in a downhole tool | Fixed Constructions | 12 | Active |
| US7758734B2 | Methods and apparatus for the measurement of hydrogen sulphide and thiols in fluids | Emerging Cross-Sectional Technologies | 10 | Active |
| US8220536B2 | Downhole fluid communication apparatus and method | Fixed Constructions | 8 | Active |
| US7568521B2 | Wellbore formation evaluation system and method | Fixed Constructions | 6 | Active |
| US8268146B2 | Measurement of hydrogen sulphide and thiols in fluids | Emerging Cross-Sectional Technologies | 5 | Active |
| US7565835B2 | Method and apparatus for balanced pressure sampling | Fixed Constructions | 4 | Active |
| US7913554B2 | Method and apparatus for balanced pressure sampling | Fixed Constructions | 4 | Active |
| US8561686B2 | Downhole fluid communication apparatus and method | Fixed Constructions | 2 | Active |
| US10612370B2 | Open smart completion | Fixed Constructions | 2 | Active |
| US9322747B2 | Isothermal subsea sampling system and method | Physics | 2 | Active |
| US8662188B2 | Wired drill pipe cable connector system | Emerging Cross-Sectional Technologies | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.