EcoFactor, Inc.

34 patents currently held · Updated Nov 14, 2026

Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

Ending by 2030

May 2028

Next term end

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

20262027202820292030203120322033203420352036203720382039204020412042204320442045

Fee deadlines

Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.

1 fee due Nov 14, 2026
The maintenance fee for System and method for using a wireless device as a sensor for an energy management system (US 10,289,131) comes due Nov 14, 2026. Unpaid by May 14, 2027, it lapses early.
1 fee due Dec 16, 2026
The maintenance fee for System and method for evaluating changes in the efficiency of an HVAC system (US 9,057,649) comes due Dec 16, 2026. Unpaid by Jun 16, 2027, it lapses early.
1 fee due Feb 27, 2027
The maintenance fee for System and method for optimizing use of plug-in air conditioners and portable heaters (US 10,393,398) comes due Feb 27, 2027. Unpaid by Aug 27, 2027, it lapses early.
1 fee due Mar 15, 2027
The maintenance fee for System and method for using ramped setpoint temperature variation with networked thermostats to improve efficiency (US 9,134,710) comes due Mar 15, 2027. Unpaid by Sep 15, 2027, it lapses early.
2 fees due May 17 to 24, 2027 · next May 17
3 fees due Jun 5, 2027
2 fees due Jul 14 to 26, 2027 · next Jul 14
2 fees due Sep 8 to 10, 2027 · next Sep 8
1 fee due Oct 7, 2027
The maintenance fee for System and method for evaluating changes in the efficiency of an HVAC system (US 10,612,983) comes due Oct 7, 2027. Unpaid by Apr 7, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

1 term has ended since Aug 16, 2026

Patents held now

Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.

Patent	Title	Status	Expires	Confidence
US D705,095	Thermostat In force Term ends May 20, 2028 · From the USPTO record	In force	Term ends May 20, 2028	From the USPTO record
US 8,131,506	System and Method for Using a Network of Thermostats as Tool to Verify Peak Demand Reduction In force Term ends Jul 31, 2028 · Medium confidence	In force	Term ends Jul 31, 2028	Medium confidence
US 8,412,488	System and Method for Using a Network of Thermostats as Tool to Verify Peak Demand Reduction In force Term ends Jul 31, 2028 · Medium confidence	In force	Term ends Jul 31, 2028	Medium confidence
US 8,738,327	System and method for using a network of thermostats as tool to verify peak demand reduction In force Ends no later than Jul 31, 2028 · From the USPTO record	In force	Ends no later than Jul 31, 2028	From the USPTO record
US 8,131,497	System and method for calculating the thermal mass of a building In force Ends no later than Sep 16, 2028 · From the USPTO record	In force	Ends no later than Sep 16, 2028	From the USPTO record
US 8,423,322	System and method for evaluating changes in the efficiency of an HVAC system In force Ends no later than Sep 16, 2028 · From the USPTO record	In force	Ends no later than Sep 16, 2028	From the USPTO record
US 8,886,488	System and method for calculating the thermal mass of a building In force Ends no later than Sep 16, 2028 · From the USPTO record	In force	Ends no later than Sep 16, 2028	From the USPTO record
US 9,939,333	System and method for evaluating changes in the efficiency of an HVAC system In force Ends no later than Sep 16, 2028 · From the USPTO record	In force	Ends no later than Sep 16, 2028	From the USPTO record
US 10,612,983	System and method for evaluating changes in the efficiency of an HVAC system In force Ends no later than Sep 16, 2028 · From the USPTO record	In force	Ends no later than Sep 16, 2028	From the USPTO record
US 11,835,394	System and method for evaluating changes in the efficiency of an HVAC system In force Ends no later than Sep 16, 2028 · From the USPTO record	In force	Ends no later than Sep 16, 2028	From the USPTO record

10 of 34 patents shown.

Pro members see all 34.

Pro members: see all 34 patents

Also on record, not counted in the 34: 8 lapsed for an unpaid fee. List them

Sources and methods

Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand. How this record was built

Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.

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Published applications

US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.

2 abandoned · 26 no status recorded

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