Jon E. Hed
10Patents
10h-index
12Co-inventors
69Inventor score
Filing activity: Apr 15, 1985 → Jan 10, 2005
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4611661A | Retrievable exploration guide base/completion guide base system | Fixed Constructions | 61 | Expired |
| US6840323B2 | Tubing annulus valve | Chemistry; Metallurgy | 45 | Expired |
| US6719059B2 | Plug installation system for deep water subsea wells | Fixed Constructions | 39 | Expired |
| US7032673B2 | Orientation system for a subsea well | Chemistry; Metallurgy | 24 | Expired |
| US7121344B2 | Plug installation system for deep water subsea wells | Fixed Constructions | 23 | Expired |
| US6978839B2 | Internal connection of tree to wellhead housing | Chemistry; Metallurgy | 17 | Expired |
| US6902199B2 | ROV activated subsea connector | Emerging Cross-Sectional Technologies | 16 | Expired |
| US7063160B2 | Non-orienting tubing hanger system with a flow cage | Fixed Constructions | 14 | Expired |
| US7219741B2 | Tubing annulus valve | Chemistry; Metallurgy | 11 | Expired |
| US4754813A | Tree capless cone seal manifold | Emerging Cross-Sectional Technologies | 11 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.