Pintail Power LLC

20 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

Nov 2034

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 Dec 13, 2026
The maintenance fee for High pressure liquid air power and storage (US 11,674,439) comes due Dec 13, 2026. Unpaid by Jun 14, 2027, it lapses early.
1 fee due May 12, 2027
The maintenance fee for Liquid Air Power and Storage (US 10,473,029) comes due May 12, 2027. Unpaid by Nov 12, 2027, it lapses early.
1 fee due Jun 12, 2027
The maintenance fee for Flexible integration of stored heat and electric resources (fisher) (US 11,840,943) comes due Jun 12, 2027. Unpaid by Dec 13, 2027, 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.

Patent	Title	Status	Expires	Confidence
US 12,385,432	Liquid Air Power and Storage In force Term ends Nov 18, 2034 · Medium confidence	In force	Term ends Nov 18, 2034	Medium confidence
US 9,816,490	Dispatchable solar hybrid power plant In force Term ends May 27, 2035 · From the USPTO record	In force	Term ends May 27, 2035	From the USPTO record
US 10,113,535	Dispatchable combined cycle power plant In force Ends no later than May 27, 2035 · From the USPTO record	In force	Ends no later than May 27, 2035	From the USPTO record
US 10,808,685	Dispatchable combined cycle power plant In force Ends no later than May 27, 2035 · From the USPTO record	In force	Ends no later than May 27, 2035	From the USPTO record
US 11,686,527	Cryogenic Liquid Energy Storage In force Term ends May 13, 2036 · Medium confidence	In force	Term ends May 13, 2036	Medium confidence
US 10,738,696	Liquid air power and storage with carbon capture In force Term ends Aug 30, 2036 · From the USPTO record	In force	Term ends Aug 30, 2036	From the USPTO record
US 11,674,439	High pressure liquid air power and storage In force Term ends Oct 20, 2036 · From the USPTO record	In force	Term ends Oct 20, 2036	From the USPTO record
US 11,359,521	Dispatchable storage combined cycle power plants In force Ends no later than Nov 4, 2036 · From the USPTO record	In force	Ends no later than Nov 4, 2036	From the USPTO record
US 10,473,029	Liquid Air Power and Storage In force Term ends Nov 18, 2036 · High confidence	In force	Term ends Nov 18, 2036	High confidence
US 11,221,177	Cryogenic liquid energy storage In force Term ends Jan 5, 2037 · From the USPTO record	In force	Term ends Jan 5, 2037	From the USPTO record

10 of 20 patents shown.

Pro members see all 20.

Pro members: see all 20 patents

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.