08180492 is referenced by 160 patents and cites 113 patents.

The invention comprises systems and methods for detecting the use of networked consumer electronics devices as indications of occupancy of a structure for purposes of automatically adjusting the temperature setpoint on a thermostatic HVAC control. At least one thermostat is located inside a structure and is used to control an HVAC system in the structure. At least one networked electronic device is used to indicate the state of occupancy of the structure. The state of occupancy is used to alter the setpoint on the thermostatic HVAC control to reduce unneeded conditioning of unoccupied spaces.

Title
System and method for using a networked electronic device as an occupancy sensor for an energy management system
Application Number
12/502064
Publication Number
8180492 (B2)
Application Date
July 13, 2009
Publication Date
May 15, 2012
Inventor
John Douglas Steinberg
Millbrae
CA, US
Agent
Knobbe Martens Olson & Bear
Assignee
EcoFactor
CA, US
IPC
G05D 23/00
G05B 15/00
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