David A. Murphy
9Patents
8h-index
15Co-inventors
66Inventor score
Filing activity: Oct 10, 1984 → Mar 12, 2019
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4548549A | Micro-processor control of compression ratio at full load in a helical screw rotary compressor responsive to compressor drive motor current | Mechanical Engineering; Lighting; Heating | 64 | Expired |
| US6423895B1 | Solar array for satellite vehicles | Emerging Cross-Sectional Technologies | 34 | Expired |
| US4519748A | Micro-processor control of compression ratio at full load in a helical screw rotary compressor responsive to compressor drive motor current | Mechanical Engineering; Lighting; Heating | 29 | Expired |
| US4516914A | Micro-processor control of moveable slide stop and a moveable slide valve in a helical screw rotary compressor | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US5516414A | Method and apparatus for electrolytically plating copper | Chemistry; Metallurgy | 17 | Expired |
| US5718254A | Adjustable bed canopy and curtain system | Human Necessities | 16 | Expired |
| US4678406A | Variable volume ratio screw compressor with step control | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US7761288B2 | Polylingual simultaneous shipping of software | Physics | 10 | Expired |
| US11458821B1 | Rack mounted weather shield | Performing Operations; Transporting | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.