Mark Johnson
5Patents
2h-index
3Co-inventors
40Inventor score
Filing activity: Dec 2, 1997 → Dec 1, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5988278A | Using a horizontal circular wellbore to improve oil recovery | Fixed Constructions | 34 | Expired |
| US8307898B2 | Method and apparatus for cementing a liner in a borehole using a tubular member having an obstruction | Fixed Constructions | 2 | Active |
| US8720559B2 | Cementing method and apparatus for use with running string having an obstruction | Fixed Constructions | 2 | Active |
| US8220544B2 | Cementing with electric line coiled tubing | Fixed Constructions | 0 | Active |
| US7941594B2 | SDRAM sharing using a control surrogate | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.