David Wightman
20Patents
9h-index
1Co-inventors
61Inventor score
Filing activity: Jan 12, 1999 → Nov 29, 2016
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6393851B1 | Vapor compression system | Mechanical Engineering; Lighting; Heating | 40 | Expired |
| US6397629B2 | Vapor compression system and method | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US6581398B2 | Vapor compression system and method | Mechanical Engineering; Lighting; Heating | 22 | Expired |
| US6185958A | Vapor compression system and method | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US6951117B1 | Vapor compression system and method for controlling conditions in ambient surroundings | Mechanical Engineering; Lighting; Heating | 13 | Expired |
| US6915648B2 | Vapor compression systems, expansion devices, flow-regulating members, and vehicles, and methods for using vapor compression systems | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US6314747A | Vapor compression system and method | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US6389825B1 | Evaporator coil with multiple orifices | Mechanical Engineering; Lighting; Heating | 11 | Expired |
| US6857281B2 | Expansion device for vapor compression system | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US6401471B1 | Expansion device for vapor compression system | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US6401470B1 | Expansion device for vapor compression system | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US6644052B1 | Vapor compression system and method | Mechanical Engineering; Lighting; Heating | 8 | Expired |
| US6751970B2 | Vapor compression system and method | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US7152415B2 | Refrigerated compartment with controller to place refrigeration system in sleep-mode | Emerging Cross-Sectional Technologies | 6 | Expired |
| US7225627B2 | Vapor compression system and method for controlling conditions in ambient surroundings | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US9057547B2 | Surged heat pump systems | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US9879899B2 | Surged heat pump systems and methods | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US9127870B2 | Surged vapor compression heat transfer systems with reduced defrost requirements | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US10060662B2 | Surged heat pump systems and methods of defrosting an evaporator | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10288334B2 | Surged vapor compression heat transfer systems with reduced defrost phase separator | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.