US 8,412,488 C1 (13,306th)
System and method for using a network of thermostats as tool to verify peak demand reduction
John Douglas Steinberg, Millbrae, CA (US); and Scott Douglas Hublon, Redwood City, CA (US)
Filed by John Douglas Steinberg, Millbrae, CA (US); and Scott Douglas Hublon, Redwood City, CA (US)
Assigned to ECOFACTOR, INC.
Reexamination Request No. 90/014,916, Dec. 3, 2021.
Reexamination Certificate for Patent 8,412,488, issued Apr. 2, 2013, Appl. No. 13/409,697, Mar. 1, 2012.
Application 90/014,916 is a continuation of application No. 13/037,162, filed on Feb. 28, 2011, granted, now 8,131,506.
Application 13/037,162 is a continuation of application No. 12/183,949, filed on Jul. 31, 2008, granted, now 7,908,116.
Claims priority of provisional application 60/994,011, filed on Sep. 17, 2007.
Claims priority of provisional application 60/963,183, filed on Aug. 3, 2007.
Ex Parte Reexamination Certificate issued on Aug. 4, 2026.
Int. Cl. G01B 15/00 (2006.01); F24F 11/30 (2018.01); F24F 11/62 (2018.01); F24F 11/63 (2018.01); G01K 3/08 (2006.01); G01M 99/00 (2011.01); G05B 13/04 (2006.01); G05D 23/19 (2006.01); F24F 11/46 (2018.01)
CPC G05D 23/1917 (2013.01) [F24F 11/30 (2018.01); F24F 11/62 (2018.01); F24F 11/63 (2018.01); G01K 3/08 (2013.01); G01M 99/005 (2013.01); G05B 13/048 (2013.01); G05D 23/1923 (2013.01); F24F 11/46 (2018.01)]
OG exemplary drawing
AS A RESULT OF REEXAMINATION, IT HAS BEEN DETERMINED THAT:
Claims 1-16 are cancelled.
1. A system for monitoring the operational status of an HVAC system comprising:
at least one HVAC control system associated with a first structure that receives temperature measurements from at least a first structure conditioned by at least one HVAC system;
one or more processors that receive measurements of outside temperatures from at least one source other than said HVAC system.
wherein said one or more processors compares the inside temperature of said first structure and the outside temperature over time to derive an estimation for the rate of change in inside temperature of said first structure in response to outside temperature, and
wherein said one or more processors compare an inside temperature recorded inside the first structure with said estimation for the rate of change in inside temperature of said first structure to determine whether the first HVAC system is on or off.