James E. Bradfield
7Patents
7h-index
8Co-inventors
48Inventor score
Filing activity: Aug 4, 1982 → May 4, 1987
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4710712A | Method and apparatus for measuring defects in ferromagnetic elements | Fixed Constructions | 30 | Expired |
| US4492115A | Method and apparatus for measuring defects in ferromagnetic tubing | Physics | 23 | Expired |
| US4555665A | Magnetic flux method for measuring tubular wall thickness | Physics | 21 | Expired |
| US4611170A | Coil apparatus mounted on an axially split spool for indicating wall thickness variations of a length of ferromagnetic pipe | Physics | 15 | Expired |
| US4636727A | Method and apparatus for detecting the location of defects in tubular sections moving past a well head | Physics | 15 | Expired |
| US4792756A | Method and apparatus for measuring axially extending defects in ferromagnetic elements | Physics | 13 | Expired |
| US4704580A | Method and apparatus for measuring the depth of local defects in ferromagnetic elements | Physics | 12 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.