David Sask
9Patents
7h-index
7Co-inventors
56Inventor score
Filing activity: Mar 5, 1987 → Dec 20, 2007
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5638904A | Safeguarded method and apparatus for fluid communiction using coiled tubing, with application to drill stem testing | Fixed Constructions | 90 | Expired |
| US4898236A | Drill stem testing system | Fixed Constructions | 41 | Expired |
| US6527050B1 | Method and apparatus for formation damage removal | Fixed Constructions | 15 | Expired |
| US7063156B2 | Tubing fill and testing valve | Fixed Constructions | 12 | Expired |
| US6959762B2 | Method and apparatus for formation damage removal | Fixed Constructions | 8 | Expired |
| US6722438B2 | Method and apparatus for formation damage removal | Fixed Constructions | 7 | Expired |
| US4995462A | Dewaxing control apparatus for oil well | Fixed Constructions | 7 | Expired |
| US7849920B2 | System and method for optimizing production in a well | Fixed Constructions | 4 | Active |
| US7267177B2 | Tubing fill and testing valve | Fixed Constructions | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.