Robert N. Rogers
7Patents
6h-index
9Co-inventors
56Inventor score
Filing activity: May 20, 1974 → Jul 9, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6840323B2 | Tubing annulus valve | Chemistry; Metallurgy | 45 | Expired |
| US8474537B2 | High capacity wellhead connector having a single annular piston | Fixed Constructions | 36 | Active |
| US3945923A | Modular water filter | Chemistry; Metallurgy | 18 | Expired |
| US7063160B2 | Non-orienting tubing hanger system with a flow cage | Fixed Constructions | 14 | Expired |
| US7219741B2 | Tubing annulus valve | Chemistry; Metallurgy | 11 | Expired |
| US4058464A | Helically wound expandable filter | Performing Operations; Transporting | 10 | Expired |
| US8087181B2 | Valve body seat pocket inspection tool | Physics | 4 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.