Keith Michael
7Patents
6h-index
5Co-inventors
52Inventor score
Filing activity: Jun 14, 1993 → Jul 19, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5388650A | Non-cryogenic production of nitrogen for on-site injection in downhole drilling | Fixed Constructions | 33 | Expired |
| US7588612B2 | Mobile nitrogen generation device | Performing Operations; Transporting | 12 | Active |
| US5862869A | Non-cryogenic nitrogen for on-site downhole drilling and post drilling operations | Fixed Constructions | 11 | Expired |
| US6206113A | Non-cryogenic nitrogen for on-site downhole drilling and post drilling operations apparatus | Fixed Constructions | 10 | Expired |
| US6041873A | Non-cryogenic nitrogen for on-site downhole drilling and post drilling operations | Fixed Constructions | 8 | Expired |
| US5749422A | Non-cryogenic nitrogen for on-site downhole drilling and post drilling operations | Fixed Constructions | 7 | Expired |
| US6443245B2 | Non-cryogenic nitrogen for on-site downhole drilling and post drilling operations | Fixed Constructions | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.