Aquestia Ltd.

9 patents currently held · Updated Nov 14, 2026

1 more in force is now held by another company

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

Ending by 2030

Nov 2030

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 Apr 30, 2027
The maintenance fee for Dual set-point pressure regulating system (US 11,803,199) comes due Apr 30, 2027. Unpaid by Nov 1, 2027, it lapses early.
1 fee due May 21, 2027
The maintenance fee for Air release valve with low pressure sealing (US 11,821,533) comes due May 21, 2027. Unpaid by Nov 22, 2027, it lapses early.
1 fee due Sep 8, 2027
The maintenance fee for Gas valve (US 9,279,513) comes due Sep 8, 2027. Unpaid by Mar 8, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

Nothing was recorded against this company's patents in the last 90 days.

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.

Showing 1 to 9 of 9

Patent	Title	Status	Expires	Confidence
US 9,279,513	Gas valve In force Term ends Nov 27, 2030 · From the USPTO record	In force	Term ends Nov 27, 2030	From the USPTO record
US 10,036,144	Valve assembly for prevention of water freezing and stagnation In force Term ends Jan 16, 2036 · From the USPTO record	In force	Term ends Jan 16, 2036	From the USPTO record
US 11,803,199	Dual set-point pressure regulating system In force Term ends Oct 25, 2038 · From the USPTO record	In force	Term ends Oct 25, 2038	From the USPTO record
US 12,129,932	Air Valve with External Liquid Level Sensor In force Term ends Sep 8, 2039 · High confidence	In force	Term ends Sep 8, 2039	High confidence
US 11,821,533	Air release valve with low pressure sealing In force Term ends Sep 24, 2039 · From the USPTO record	In force	Term ends Sep 24, 2039	From the USPTO record
US 11,162,608	Air Vent and Liquid Relief Valve for a Pressurized System In force Term ends Mar 22, 2040 · High confidence	In force	Term ends Mar 22, 2040	High confidence
US 12,209,684	Hydraulically operated valve and systems for use therewith In force Term ends Jul 10, 2041 · From the USPTO record	In force	Term ends Jul 10, 2041	From the USPTO record
US 12,650,174	Diaphragm Valve Incorporating an Alarm Port In force Term ends Nov 10, 2041 · High confidence	In force	Term ends Nov 10, 2041	High confidence
US 12,372,167	Anti-cavitation valve assembly In force Term ends Jan 5, 2044 · From the USPTO record	In force	Term ends Jan 5, 2044	From the USPTO record

Also on record, not counted in the 9: 1 patent in force now held by others · 1 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.

1 no status recorded

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