NORTEK GLOBAL HVAC LLC

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F25B REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS 1058
 
  
 
F25D REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHER SUBCLASS 343
 
  
 
F24D DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR 218
 
  
 
F24F AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING 243
 
  
 
F23C METHODS OR APPARATUS FOR COMBUSTION USING FLUENT FUEL 120

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0016,659 REFRIGERANT CHARGE AND CONTROL METHOD FOR HEAT PUMP SYSTEMSJul 14, 15Jan 19, 17[F25B]
2016/0313,033 REFRIGERANT CHARGE MANAGEMENT IN A HEAT PUMP WATER HEATERMay 04, 16Oct 27, 16[F25B, F24D]
2015/0354,834 THAW CYCLE IN CONDENSING STYLE GAS FURNACESJun 09, 14Dec 10, 15[F24D]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9383126 Refrigerant charge management in a heat pump water heaterMay 15, 14Jul 05, 16[F25B, F24D]
9328946 Heat pumps with unequal cooling and heating capacities for climates where demand for cooling and heating are unequal, and method of adapting and distributing such heat pumpsJul 22, 15May 03, 16[F25B]
9121628 Heat pumps with unequal cooling and heating capacities for climates where demand for cooling and heating are unequal, and method of adapting and distributing such heat pumpsFeb 25, 11Sep 01, 15[F25B]
8869545 Defrosting a heat exchanger in a heat pump by diverting warm refrigerant to an exhaust headerOct 02, 13Oct 28, 14[F25B, F25D]
8756943 Refrigerant charge management in a heat pump water heaterJul 12, 12Jun 24, 14[F25B, F25D]
8672733 Ventilation airflow rate controlFeb 06, 07Mar 18, 14[F24F]
8261568 Condensing gas package unit with a tubular conduit for passing a condensate drain lineFeb 11, 11Sep 11, 12[F25D]
8167610 Premix furnace and methods of mixing air and fuel and improving combustion stabilityJun 03, 10May 01, 12[F23C]
8011199 HVAC control using discrete-speed thermostats and run timesJul 27, 10Sep 06, 11[F25B]
7784296 System and method for controlling an air conditioner or heat pumpMar 08, 07Aug 31, 10[F25B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2015/0276,104 TUBING JOINTAbandonedMar 31, 14Oct 01, 15[F16L]
2013/0312,436 HEAT PUMP WITH IMPROVED DEFROST CYCLE AND METHOD OF DEFROSTING A HEAT EXCHANGERAbandonedMay 22, 12Nov 28, 13[F25B, F25D]

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