DW

David Wightman

XD Xdx: 13 patents #1 of 15Top 7%
XG Xdx Global: 5 patents #1 of 1Top 100%
CR Carrier Commercial Refrigeration: 1 patents #40 of 64Top 65%
Overall (All Time): #222,515 of 4,157,543Top 6%
20
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10288334 Surged vapor compression heat transfer systems with reduced defrost phase separator 2019-05-14
10060662 Surged heat pump systems and methods of defrosting an evaporator 2018-08-28
9879899 Surged heat pump systems and methods 2018-01-30
9127870 Surged vapor compression heat transfer systems with reduced defrost requirements 2015-09-08
9057547 Surged heat pump systems 2015-06-16
7225627 Vapor compression system and method for controlling conditions in ambient surroundings 2007-06-05
7152415 Refrigerated compartment with controller to place refrigeration system in sleep-mode Michael Micak 2006-12-26
6951117 Vapor compression system and method for controlling conditions in ambient surroundings 2005-10-04
6915648 Vapor compression systems, expansion devices, flow-regulating members, and vehicles, and methods for using vapor compression systems 2005-07-12
6857281 Expansion device for vapor compression system 2005-02-22
6751970 Vapor compression system and method 2004-06-22
6644052 Vapor compression system and method 2003-11-11
6581398 Vapor compression system and method 2003-06-24
6401471 Expansion device for vapor compression system 2002-06-11
6401470 Expansion device for vapor compression system 2002-06-11
6397629 Vapor compression system and method 2002-06-04
6393851 Vapor compression system 2002-05-28
6389825 Evaporator coil with multiple orifices 2002-05-21
6314747 Vapor compression system and method 2001-11-13
6185958 Vapor compression system and method 2001-02-13