James E. Chitwood
27Patents
10h-index
13Co-inventors
72Inventor score
Filing activity: Aug 28, 1998 → Mar 28, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6857486B2 | High power umbilicals for subterranean electric drilling machines and remotely operated vehicles | Fixed Constructions | 134 | Expired |
| US6868906B1 | Closed-loop conveyance systems for well servicing | Fixed Constructions | 115 | Expired |
| US7325606B1 | Methods and apparatus to convey electrical pumping systems into wellbores to complete oil and gas wells | Fixed Constructions | 45 | Active |
| US7048050B2 | Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells | Fixed Constructions | 42 | Expired |
| US7032658B2 | High power umbilicals for electric flowline immersion heating of produced hydrocarbons | Fixed Constructions | 38 | Expired |
| US7311151B2 | Substantially neutrally buoyant and positively buoyant electrically heated flowlines for production of subsea hydrocarbons | Fixed Constructions | 32 | Expired |
| US7836950B2 | Methods and apparatus to convey electrical pumping systems into wellbores to complete oil and gas wells | Fixed Constructions | 27 | Active |
| US8651177B2 | Long-lasting hydraulic seals for smart shuttles, for coiled tubing injectors, and for pipeline pigs | Fixed Constructions | 16 | Active |
| US8353348B2 | High power umbilicals for subterranean electric drilling machines and remotely operated vehicles | Fixed Constructions | 14 | Active |
| US7228901B2 | Method and apparatus for cementing drill strings in place for one pass drilling and completion of oil and gas wells | Fixed Constructions | 12 | Expired |
| US9027673B2 | Universal drilling and completion system | Fixed Constructions | 10 | Active |
| US6109834A | Composite tubular and methods | Fixed Constructions | 8 | Expired |
| US9079639B2 | Large volume subsea chemical storage and metering system | Performing Operations; Transporting | 5 | Active |
| US9284780B2 | Drilling apparatus | Fixed Constructions | 3 | Active |
| US9656801B2 | Underwater storage tank and fill control mechanism | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US11435722B2 | Subsea smart electric control unit | Physics | 2 | Active |
| US9587435B2 | Universal drilling and completion system | Fixed Constructions | 1 | Active |
| US10046907B2 | Underwater storage tank and fill control mechanism | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US9156609B2 | Large subsea package deployment methods and devices | Fixed Constructions | 1 | Active |
| US10232919B2 | Multi-vessel process to install and recover subsea equipment packages | Performing Operations; Transporting | 1 | Active |
| US11549340B2 | Well annulus fluid expansion storage device | Fixed Constructions | 1 | Active |
| US10174572B2 | Universal drilling and completion system | Fixed Constructions | 1 | Active |
| US8876960B2 | Method and system for transporting and processing sour fluids | Performing Operations; Transporting | 0 | Active |
| US10689927B2 | Universal drilling and completion system | Fixed Constructions | 0 | Active |
| US11554839B2 | Method to install, adjust and recover buoyancy material from subsea facilities | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.