James W. Macfarlane
8Patents
6h-index
14Co-inventors
60Inventor score
Filing activity: Aug 8, 1983 → Mar 7, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4578810A | System for printed circuit board defect detection | Physics | 101 | Expired |
| US6415877B1 | Subsea wellbore drilling system for reducing bottom hole pressure | Fixed Constructions | 97 | Expired |
| US6648081B2 | Subsea wellbore drilling system for reducing bottom hole pressure | Fixed Constructions | 64 | Expired |
| US6854532B2 | Subsea wellbore drilling system for reducing bottom hole pressure | Fixed Constructions | 59 | Expired |
| US6179057A | Apparatus and method for killing or suppressing a subsea well | Fixed Constructions | 26 | Expired |
| US5823354A | Method and apparatus for the separation and sorting of non-ferrous materials | Performing Operations; Transporting | 7 | Expired |
| US6408948B1 | Tubing handling for subsea oilfield tubing operations | Fixed Constructions | 6 | Expired |
| US10473794B2 | Radiation detection device and method | Performing Operations; Transporting | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.