James E. O'Brien
20Patents
10h-index
28Co-inventors
75Inventor score
Filing activity: Nov 7, 1974 → Jan 31, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8468030B2 | System and method for collecting, organizing, and presenting date-oriented medical information | Physics | 235 | Active |
| US4055131A | Electronic control arrangement for sewing machines | Textiles; Paper | 23 | Expired |
| US6125637A | Systems for delivering liquified natural gas to an engine | Emerging Cross-Sectional Technologies | 21 | Expired |
| US8389180B2 | Electrolytic/fuel cell bundles and systems including a current collector in communication with an electrode thereof | Emerging Cross-Sectional Technologies | 14 | Active |
| US7044113B2 | Systems for delivering liquified gas to an engine | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6494191B2 | Systems and method for delivering liquified gas to an engine | Emerging Cross-Sectional Technologies | 12 | Expired |
| US6953028B2 | Method for delivering liquified gas to an engine | Emerging Cross-Sectional Technologies | 11 | Expired |
| US7951283B2 | High temperature electrolysis for syngas production | Emerging Cross-Sectional Technologies | 11 | Active |
| US4720340A | Foldable weight positionable pool skimmer debris deflector | Fixed Constructions | 11 | Expired |
| US7512541B2 | System and method for collecting, organizing and presenting research-oriented medical information | Emerging Cross-Sectional Technologies | 10 | Active |
| US8366902B2 | Methods and systems for producing syngas | Emerging Cross-Sectional Technologies | 9 | Active |
| US6619273B2 | Systems and method for delivering liquified gas to an engine | Emerging Cross-Sectional Technologies | 8 | Expired |
| US3939372A | Contact-free pulse generators | Electricity | 7 | Expired |
| US9027359B2 | Heat exchange system | Emerging Cross-Sectional Technologies | 3 | Active |
| US6976301B2 | Finned tube with vortex generators for a heat exchanger | Emerging Cross-Sectional Technologies | 2 | Expired |
| US11142832B2 | Methods and systems for syngas production and for efficient, flexible energy generation | Emerging Cross-Sectional Technologies | 2 | Active |
| US6789317B1 | Finned tube with vortex generators for a heat exchanger | Emerging Cross-Sectional Technologies | 2 | Expired |
| US11015877B2 | Energy storage systems including thermal storage tanks | Emerging Cross-Sectional Technologies | 1 | Active |
| US11725857B1 | Heat pump | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US11732975B2 | Heat exchangers and related systems and methods | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.