Christopher E. Cunningham
49Patents
17h-index
58Co-inventors
84Inventor score
Filing activity: Mar 22, 1990 → Sep 6, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6227300A | Slimbore subsea completion system and method | Fixed Constructions | 131 | Expired |
| US5893389A | Metal seals for check valves | Emerging Cross-Sectional Technologies | 70 | Expired |
| US5044672A | Metal-to-metal sealing pipe swivel joint | Emerging Cross-Sectional Technologies | 61 | Expired |
| US5992526A | ROV deployed tree cap for a subsea tree and method of installation | Fixed Constructions | 50 | Expired |
| US6715554B1 | Slimbore subsea completion system and method | Fixed Constructions | 44 | Expired |
| US6062769A | Enhanced steel catenary riser system | Fixed Constructions | 38 | Expired |
| US5791657A | Seals containing composite non-extrusion springs | Fixed Constructions | 36 | Expired |
| US6408947B1 | Subsea connection apparatus | Fixed Constructions | 35 | Expired |
| US6494257B2 | Flow completion system | Fixed Constructions | 34 | Expired |
| US5842816A | Pig delivery and transport system for subsea wells | Emerging Cross-Sectional Technologies | 32 | Expired |
| US7025132B2 | Flow completion apparatus | Fixed Constructions | 29 | Expired |
| US6655455B2 | Flow completion system | Mechanical Engineering; Lighting; Heating | 28 | Expired |
| US5941310A | Monobore completion/intervention riser system | Fixed Constructions | 26 | Expired |
| US6488083B2 | Tubing hanger system | Fixed Constructions | 21 | Expired |
| US6004072A | Self-orienting subsea flowline tapping arrangement | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US5769162A | Dual bore annulus access valve | Fixed Constructions | 18 | Expired |
| US6053202A | Fail-safe closure system for remotely operable valve actuator | Emerging Cross-Sectional Technologies | 18 | Expired |
| US8487493B2 | Method and apparatus for controlling a bearing through a pressure boundary | Emerging Cross-Sectional Technologies | 16 | Active |
| US5819852A | Monobore completion/intervention riser system | Fixed Constructions | 16 | Expired |
| US5044432A | Well pipe hanger with metal sealing annulus valve | Fixed Constructions | 16 | Expired |
| US6494266B2 | Controls bridge for flow completion systems | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5722796A | Hinge-over subsea template production system | Fixed Constructions | 14 | Expired |
| US5868203A | Apparatus and method for subsea connections of trees to subsea wellheads | Fixed Constructions | 12 | Expired |
| US6681850B2 | Flow completion system | Fixed Constructions | 12 | Expired |
| US7069988B2 | Flow completion system | Fixed Constructions | 10 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.