William J. Barbier
16Patents
11h-index
8Co-inventors
65Inventor score
Filing activity: Oct 1, 1979 → Oct 11, 2002
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6578373B1 | Rate of change detector for refrigerant floodback | Mechanical Engineering; Lighting; Heating | 97 | Expired |
| US4448038A | Refrigeration control system for modulating electrically-operated expansion valves | Emerging Cross-Sectional Technologies | 87 | Expired |
| US4809129A | Liquid level control system for refrigeration apparatus | Emerging Cross-Sectional Technologies | 31 | Expired |
| US5072595A | Apparatus for detecting small bubbles in a pressurized fluid stream | Physics | 29 | Expired |
| US5278426A | Optical liquid level sensor for pressurized systems utilizing prismatic element | Emerging Cross-Sectional Technologies | 28 | Expired |
| US5765994A | Low oil detector with automatic reset | Physics | 27 | Expired |
| US5103648A | Oil level control system | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US4362027A | Refrigeration control system for modulating electrically-operated expansion valves | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4442680A | Pilot-operated pressure regulator valve | Emerging Cross-Sectional Technologies | 18 | Expired |
| US5031068A | Liquid level control system for refrigeration apparatus | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US4425767A | Refrigeration control system for modulating electrically-operated expansion valves | Emerging Cross-Sectional Technologies | 15 | Expired |
| US6557412B1 | Non-fouling liquid level control | Physics | 11 | Expired |
| US6664558B1 | Non-prismatic optical liquid level sensing assembly | Physics | 9 | Expired |
| US5627770A | Superheat gage with plug-in data module | Physics | 9 | Expired |
| US5539674A | Minimum reading pressure gage with dual function sensor | Physics | 8 | Expired |
| US4934156A | Evaporator pressure regulating valve controlled by an auxiliary force for a refrigerator installation | Emerging Cross-Sectional Technologies | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.