Robert O'Brien
22Patents
9h-index
28Co-inventors
75Inventor score
Filing activity: Jul 29, 1974 → Apr 30, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6865926B2 | Method and apparatus for sample analysis | Physics | 142 | Expired |
| US7621171B2 | Method and apparatus for sample analysis | Physics | 97 | Active |
| US7452844B2 | High surface area, small crystallite size catalyst for Fischer-Tropsch synthesis | Performing Operations; Transporting | 54 | Expired |
| US6952945B2 | Method and apparatus for concentrating samples for analysis | Physics | 51 | Expired |
| US7585812B2 | High surface area, small crystallite size catalyst for Fischer-Tropsch synthesis | Performing Operations; Transporting | 30 | Active |
| US7257987B2 | Method and apparatus for sample analysis | Physics | 24 | Expired |
| US7199077B2 | Fischer-tropsch catalyst prepared with a high purity iron precursor | Performing Operations; Transporting | 17 | Expired |
| US7037876B2 | High temperature shift catalyst prepared with a purity iron precursor | Emerging Cross-Sectional Technologies | 15 | Expired |
| US3960738A | Method for producing improved electrographic developer | Physics | 12 | Expired |
| US7560412B2 | Fluid/slurry bed cobalt-alumina catalyst made by compounding and spray drying | Performing Operations; Transporting | 9 | Active |
| US8347688B2 | Method and apparatus for sample analysis | Physics | 9 | Active |
| US4205220A | Electrographic fusing apparatus and method | Physics | 7 | Expired |
| US4212529A | Apparatus for producing duplex copies | Physics | 7 | Expired |
| US7179766B2 | Method and apparatus for production of enrobed catalyst pastilles or flakes | Performing Operations; Transporting | 5 | Expired |
| US7271126B2 | Catalyst for the dehydrogenation of ethyl benzene to STYRENE prepared with a high purity iron precursor | Performing Operations; Transporting | 3 | Expired |
| US6979663B2 | Method and apparatus for the production of enrobed catalyst pastilles | Performing Operations; Transporting | 3 | Expired |
| US7939463B1 | Preparation of iron oxides | Chemistry; Metallurgy | 2 | Active |
| UST956001I4 | Electrographic apparatus and process for humidity stabilized development | General | 2 | Expired |
| US7566680B2 | High surface area iron material prepared from a low surface area iron metal precursor | Performing Operations; Transporting | 1 | Active |
| US9411933B1 | Method and system for collection and management of perioperative data | Physics | 0 | Active |
| US9298879B2 | Method and system for collection and management of perioperative data | Physics | 0 | Active |
| US11481203B2 | Shared pipeline for multiple services | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.