Robert S. Ledley
32Patents
17h-index
5Co-inventors
74Inventor score
Filing activity: Nov 4, 1975 → Jun 7, 1995
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5296846A | Three-dimensional cursor control device | Physics | 154 | Expired |
| US4474186A | Computerized electro-oculographic (CEOG) system with feedback control of stimuli | Human Necessities | 135 | Expired |
| US5922282A | Super fast tuberculosis diagnosis and sensitivity testing method | Physics | 74 | Expired |
| US4271706A | Ultrasonic scanner | Emerging Cross-Sectional Technologies | 54 | Expired |
| US5639669A | Separation of fetal cells from maternal blood | Emerging Cross-Sectional Technologies | 49 | Expired |
| US4929832A | Methods and apparatus for determining distributions of radioactive materials | Physics | 48 | Expired |
| US4229797A | Method and system for whole picture image processing | Physics | 36 | Expired |
| US4656594A | Operator-interactive automated chromosome analysis system producing a karyotype | Physics | 35 | Expired |
| US4747411A | Three-dimensional imaging system | Emerging Cross-Sectional Technologies | 32 | Expired |
| US4673973A | Split-image, multi-power microscopic image display system and method | Electricity | 30 | Expired |
| US4450478A | Digital fluorographic method and system | Electricity | 26 | Expired |
| US4409616A | Digital dental system and method | Physics | 21 | Expired |
| US4417967A | Grooved gel | Physics | 21 | Expired |
| US4320768A | Computerized electro-oculographic (CEOG) system | Human Necessities | 20 | Expired |
| USRE34622E | Split-image, multi-power microscopic image display system and method | General | 20 | Expired |
| US4478816A | Rare earth/chelating agent complex for digital fluoroscopy | Human Necessities | 18 | Expired |
| US4798210A | Three-dimensional imaging system | Electricity | 18 | Expired |
| US4563173A | Pump-actuated sequencing valve and system | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4769698A | Interactive microscopic image display system and method | Physics | 15 | Expired |
| US4817119A | Method and apparatus for computerized tomographic scanning with plural intersecting sets of parallel radiation beams | Human Necessities | 14 | Expired |
| US4716225A | Radioopaque sugar derivatives and a method of metabolic mapping using the same | Human Necessities | 14 | Expired |
| USRE34566E | Three-dimensional imaging system | General | 13 | Expired |
| US4005311A | Diagnostic X-ray systems | Physics | 13 | Expired |
| US4821728A | Three-dimensional imaging system | Emerging Cross-Sectional Technologies | 11 | Expired |
| US5335683A | Non-slip support shoe for a walking aid | Human Necessities | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.