John B. Greenfield
10Patents
7h-index
9Co-inventors
55Inventor score
Filing activity: Aug 7, 1975 → Sep 4, 1992
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5207074A | Refrigerant coil apparatus and associated condensate drain pan structure | Mechanical Engineering; Lighting; Heating | 42 | Expired |
| US5121613A | Compact modular refrigerant coil apparatus and associated manufacturing methods | Mechanical Engineering; Lighting; Heating | 28 | Expired |
| US4043708A | Resilient mounting for fan motor | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US5228197A | Refrigerant coil fabrication methods | Emerging Cross-Sectional Technologies | 20 | Expired |
| US5255969A | Double-walled cabinet structure for air conditioning equipment | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US4171937A | Grill panel and motor mount assembly | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US5170550A | Double-walled cabinet structure for air conditioning equipment | Emerging Cross-Sectional Technologies | 18 | Expired |
| USD289292S | Transportable computer | General | 6 | Expired |
| US4571952A | Solar and convection assisted heat pump system | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| USD243460S | Portable personal computer | General | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.