Lochinvar, LLC

25 patents currently held · Updated Nov 15, 2026

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

Ending by 2030

Mar 2027

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.

2 fees due Feb 4, 2027
1 fee due Apr 29, 2027
The maintenance fee for Heat Exchanger With Dual Concentric Tube Rings (US 10,458,677) comes due Apr 29, 2027. Unpaid by Oct 29, 2027, it lapses early.
2 fees due May 19 to 28, 2027 · next May 19
1 fee due Oct 7, 2027
The maintenance fee for Methods And System For Demand-Based Control Of A Combination Boiler (US 10,612,795) 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 17, 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 7,506,617	Control System for Modulating Water Heater In force Term ends Mar 9, 2027 · High confidence	In force	Term ends Mar 9, 2027	High confidence
US 10,247,446	Control System for Modulating Water Heater In force Term ends Aug 25, 2027 · High confidence	In force	Term ends Aug 25, 2027	High confidence
US 10,955,169	Control System For Modulating Water Heater In force Term ends Sep 4, 2027 · High confidence	In force	Term ends Sep 4, 2027	High confidence
US 8,186,313	Control System for Modulating Water Heater In force Term ends Feb 12, 2028 · High confidence	In force	Term ends Feb 12, 2028	High confidence
US D715,905	Cover For A Boiler Cabinet In force Term ends Oct 21, 2028 · High confidence	In force	Term ends Oct 21, 2028	High confidence
US D715,906	Boiler Cabinet And Cover In force Term ends Oct 21, 2028 · High confidence	In force	Term ends Oct 21, 2028	High confidence
US 9,097,431	Control System for Modulating Water Heater In force Term ends Oct 25, 2028 · High confidence	In force	Term ends Oct 25, 2028	High confidence
US 8,186,312	Control System for Modulating Water Heater In force Term ends May 21, 2029 · High confidence	In force	Term ends May 21, 2029	High confidence
US 8,517,720	Integrated Dual Chamber Burner In force Term ends Mar 25, 2031 · High confidence	In force	Term ends Mar 25, 2031	High confidence
US 8,286,594	Gas Fired Modulating Water Heating Appliance with Dual Combustion Air Premix Blowers In force Term ends Aug 17, 2031 · High confidence	In force	Term ends Aug 17, 2031	High confidence

10 of 25 patents shown.

Pro members see all 25.

Pro members: see all 25 patents

Also on record, not counted in the 25: 5 lapsed for an unpaid fee · 5 ended at full term. 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

Every application published under this name has become a patent.