David J. Havens
6Patents
1h-index
11Co-inventors
40Inventor score
Filing activity: Apr 10, 2009 → May 31, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8733447B2 | Landing string compensator | Fixed Constructions | 7 | Active |
| US8919841B2 | Method and apparatus for attachment of a secondary tool handling device to a primary tool handling device | Fixed Constructions | 1 | Active |
| US9353603B2 | Landing string compensator | Fixed Constructions | 1 | Active |
| US9212527B2 | Pipe handling system | Fixed Constructions | 0 | Active |
| US8833470B2 | Pipe handling system | Fixed Constructions | 0 | Active |
| US9650873B2 | Landing string compensator | Fixed Constructions | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.