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Belmont, MA, US
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Patents Grants
last 30 patents
Information
Patent Grant
Oil circulation observer for HVAC systems
Patent number
7,895,846
Issue date
Mar 1, 2011
Massachusetts Institute of Technology
Xiang-Dong He
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Heating, ventilation and air conditioning (HVAC) system and method...
Patent number
7,331,191
Issue date
Feb 19, 2008
Massachusetts Institute of Technology
Xiang-Dong He
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Heating, ventilation and air conditioning (HVAC) system and method...
Patent number
7,076,962
Issue date
Jul 18, 2006
Massachusetts Institute of Technology
Xiang-Dong He
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Grant
Set point optimization in vapor compression cycles
Patent number
5,735,134
Issue date
Apr 7, 1998
Massachusetts Institute of Technology
Sheng Liu
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Patents Applications
last 30 patents
Information
Patent Application
OIL CIRCULATION OBSERVER FOR HVAC SYSTEMS
Publication number
20100037637
Publication date
Feb 18, 2010
Massachusetts Institute of Technology
Xiang-Dong He
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Application
Heating, ventilation and air conditioning (HVAC) system and method...
Publication number
20060218944
Publication date
Oct 5, 2006
Massachusetts Institute of Technology
Xiang-Dong He
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Application
Oil circulation observer for HVAC systems
Publication number
20050103035
Publication date
May 19, 2005
Massachusetts Institute of Technology
Xiang-Dong He
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
Information
Patent Application
Heating, ventilation and air conditioning (HVAC) system and method...
Publication number
20040144112
Publication date
Jul 29, 2004
Massachusetts Institute of Technology
Xiang-Dong He
F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...