David E. Nelson
22Patents
13h-index
20Co-inventors
81Inventor score
Filing activity: Aug 29, 1977 → Dec 1, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4294513A | Optical sensor system | Emerging Cross-Sectional Technologies | 68 | Expired |
| US4628493A | Sensor system with time division multiplexing telemetry | Physics | 42 | Expired |
| US5489005A | Electro-hydraulic steering system | Performing Operations; Transporting | 34 | Expired |
| US4781257A | Suspension structure for a tracked vehicle | Performing Operations; Transporting | 30 | Expired |
| US5365803A | Steering and transmission shifting control device | Emerging Cross-Sectional Technologies | 29 | Expired |
| US4799201A | Methods and apparatus for reducing correlation sidelobe interference in seismic profiling systems | Physics | 26 | Expired |
| US4509170A | Time division multiplex transmission of submultiplex sequences of signals from sections of a chain of data acquisition units | Electricity | 26 | Expired |
| US5280955A | Construction for a rollover protection structure | Performing Operations; Transporting | 21 | Expired |
| US4836318A | Track roller frame assembly | Performing Operations; Transporting | 19 | Expired |
| US4188610A | Method of and apparatus for the generation and transmission of signals for echolocation and other signalling purposes, such as in geophysical exploration | Physics | 19 | Expired |
| US5579863A | Steering system for an articulated machine | Fixed Constructions | 16 | Expired |
| US4204278A | Methods and apparatus for the generation and transmission of signals for echo location and other signalling purposes, as in geophysical exploration | Physics | 14 | Expired |
| US4313192A | Optical transducer array system | Physics | 13 | Expired |
| US4727962A | Movable sensing apparatus | Performing Operations; Transporting | 13 | Expired |
| US5212490A | Echo ranging system for detecting velocity and range of targets using composite doppler invariant-like transmissions with suppression of false targets | Physics | 11 | Expired |
| US4414725A | Method for turbocharger repair | Emerging Cross-Sectional Technologies | 9 | Expired |
| US5212489A | Echo ranging system for detecting velocity of targets using composite doppler invariant transmissions | Physics | 9 | Expired |
| US6875189B1 | Cervical traction device | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4729066A | Method and apparatus for the generation and transmission of signals for echo location and other signaling purposes, particularly in geophysical exploration | Physics | 4 | Expired |
| US4758997A | Method and apparatus for the generation and transmission of signals for echo location and other signaling purposes, particularly in geophysical exploration | Physics | 4 | Expired |
| US9623429B1 | Spray pattern adjustment system for a spray head | Fixed Constructions | 2 | Active |
| US8470962B2 | Method of thermoforming copolyesters | Chemistry; Metallurgy | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.