Charles E. Roos
31Patents
23h-index
15Co-inventors
82Inventor score
Filing activity: Mar 4, 1977 → May 22, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5699276A | Utility meter providing an interface between a digital network and home electronics | Emerging Cross-Sectional Technologies | 180 | Expired |
| US6124560A | Teleoperated robotic sorting system | Emerging Cross-Sectional Technologies | 102 | Expired |
| US6266390A | High speed materials sorting using x-ray fluorescence | Physics | 74 | Expired |
| US7763820B1 | Sorting pieces of material based on photonic emissions resulting from multiple sources of stimuli | Performing Operations; Transporting | 71 | Active |
| US7564943B2 | Method and apparatus for sorting materials according to relative composition | Physics | 64 | Active |
| US7286634B2 | Method and apparatus for improving baggage screening examination | Performing Operations; Transporting | 57 | Expired |
| US6519315B2 | High speed materials sorting using x-ray fluorescence | Physics | 52 | Expired |
| US7099433B2 | Method and apparatus for sorting materials according to relative composition | Physics | 48 | Expired |
| US7012256B1 | Computer assisted bag screening system | Physics | 46 | Expired |
| US6888917B2 | High speed materials sorting using x-ray fluorescence | Physics | 45 | Expired |
| US7486782B1 | Multifunction data port providing an interface between a digital network and electronics in residential or commercial structures | Emerging Cross-Sectional Technologies | 39 | Expired |
| US4977837A | Process and apparatus for reducing heavy metal toxicity in fly ash from solid waste incineration | Emerging Cross-Sectional Technologies | 37 | Expired |
| US7848484B2 | Method and apparatus for sorting materials according to relative composition | Physics | 37 | Active |
| US8144831B2 | Method and apparatus for sorting materials according to relative composition | Physics | 35 | Active |
| US8476545B2 | Sorting pieces of material based on photonic emissions resulting from multiple sources of stimuli | Performing Operations; Transporting | 32 | Active |
| US8553838B2 | High speed materials sorting using X-ray fluorescence | Physics | 30 | Active |
| US4533054A | Rotary fuel homogenizer and use thereof | Emerging Cross-Sectional Technologies | 29 | Expired |
| US5370234A | Rotary materials separator and method of separating materials | Emerging Cross-Sectional Technologies | 26 | Expired |
| US7616733B2 | High speed materials sorting using x-ray fluorescence | Physics | 26 | Active |
| US9126236B2 | Methods for sorting materials | Performing Operations; Transporting | 26 | Active |
| US7978814B2 | High speed materials sorting using X-ray fluorescence | Physics | 25 | Active |
| US4533053A | Rotary drum magnetic separator | Performing Operations; Transporting | 25 | Expired |
| US7244941B2 | Computer assisted bag screening system | Physics | 23 | Expired |
| US9114433B2 | Multi-fractional coal sorter and method of use thereof | Emerging Cross-Sectional Technologies | 19 | Active |
| US8610019B2 | Methods for sorting materials | Performing Operations; Transporting | 9 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.