Edward Hemphill
11Patents
6h-index
3Co-inventors
55Inventor score
Filing activity: May 4, 2001 → Sep 21, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6554247B2 | Quick release blowout preventer bonnet | Fixed Constructions | 37 | Expired |
| US6510897B2 | Rotational mounts for blowout preventer bonnets | Fixed Constructions | 34 | Expired |
| US6845959B2 | Quick release blowout preventer bonnet | Fixed Constructions | 14 | Expired |
| US7246666B2 | Mounts for blowout preventer bonnets | Fixed Constructions | 10 | Active |
| US7096960B2 | Mounts for blowout preventer bonnets | Fixed Constructions | 7 | Expired |
| US7121348B2 | Mounts for blowout preventer bonnets | Fixed Constructions | 6 | Expired |
| US7281586B2 | Mounts for blowout preventer bonnets | Fixed Constructions | 4 | Active |
| US7413019B2 | Mounts for blowout preventer bonnets | Fixed Constructions | 4 | Active |
| US8230930B2 | Mounts for blowout preventer bonnets and methods of use | Fixed Constructions | 3 | Active |
| US7802626B2 | Mounts for blowout preventer bonnets and methods of use | Fixed Constructions | 3 | Active |
| US7699554B2 | Removable seal carrier for blowout preventer bonnet assembly | Emerging Cross-Sectional Technologies | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.