Thomas O'Brien
17Patents
7h-index
7Co-inventors
59Inventor score
Filing activity: Mar 29, 1982 → Oct 20, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7445041B2 | Method and system for extraction of hydrocarbons from oil shale | Fixed Constructions | 118 | Active |
| US4427070A | Circulating and pressure equalizing sub | Emerging Cross-Sectional Technologies | 44 | Expired |
| US9315951B1 | Mat construction having environmentally resistant skin | Fixed Constructions | 14 | Active |
| US5099764A | Propulsion unit fireable from an enclosure | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US9476164B2 | Industrial mat having side bumpers and lifting elements | Fixed Constructions | 11 | Active |
| US7980304B2 | Method and system for extraction of hydrocarbons from oil shale | Fixed Constructions | 9 | Active |
| US7931080B2 | Method and system for extraction of hydrocarbons from oil sands | Emerging Cross-Sectional Technologies | 9 | Active |
| US9447547B2 | Mat construction with environmentally resistant core | Performing Operations; Transporting | 7 | Active |
| US8186430B2 | Method and system for extraction of hydrocarbons from oil sands | Emerging Cross-Sectional Technologies | 6 | Active |
| US9909708B1 | Preventing disturbances of underground conduit | Mechanical Engineering; Lighting; Heating | 6 | Active |
| US9486976B1 | Mat construction having environmentally resistant skin | Performing Operations; Transporting | 5 | Active |
| US9315949B1 | Mat construction with environmentally resistant core | Fixed Constructions | 5 | Active |
| US4481973A | Differential pressure energized circulating valve | Emerging Cross-Sectional Technologies | 4 | Expired |
| US9822493B2 | Industrial mats having side protection | Fixed Constructions | 4 | Active |
| US9663902B2 | Environmentally resistant encapsulated mat construction | Fixed Constructions | 2 | Active |
| US8377165B2 | Recovery of elements from hydrothermal products | Emerging Cross-Sectional Technologies | 1 | Active |
| US10017903B2 | Industrial mats having side protection | Fixed Constructions | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.