David A. Ratner
3Patents
3h-index
—Co-inventors
37Inventor score
Filing activity: Mar 27, 1980 → Nov 22, 1995
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5681143A | Damper control system for centrifugal fan | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US4312381A | Air flow damping system | Emerging Cross-Sectional Technologies | 13 | Expired |
| US5161941A | Actuator assembly for controlling inlet air flow to centrifugal fans | Mechanical Engineering; Lighting; Heating | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.