Hheli, LLC

23 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 2036

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 Aug 4 to 18, 2027 · next Aug 4
1 fee due Sep 26, 2027
The maintenance fee for Methods of Use of Ultra High Capacity Performance Battery Cell (US 11,942,803) comes due Sep 26, 2027. Unpaid by Mar 27, 2028, it lapses early.
2 fees due Oct 16 to 30, 2027 · next Oct 16

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 9,786,910	Synthesized, surface-functionalized, acidified metal oxide materials for energy storage, catalytic, photovoltaic and sensor applications In force Term ends Nov 15, 2036 · From the USPTO record	In force	Term ends Nov 15, 2036	From the USPTO record
US 11,962,004	Synthesized, Surface-Functionalized, Acidified Metal Oxide Materials for Energy Storage, Catalytic, Photovoltaic and Sensor Applications In force Term ends Dec 17, 2036 · Low confidence	In force	Term ends Dec 17, 2036	Low confidence
US 12,009,508	Battery with Novel Components In force Term ends Dec 17, 2036 · Low confidence	In force	Term ends Dec 17, 2036	Low confidence
US 10,978,704	Synthesized, surface-functionalized, acidified metal oxide materials for energy storage, catalytic, photovoltaic and sensor applications In force Term ends Jan 24, 2037 · From the USPTO record	In force	Term ends Jan 24, 2037	From the USPTO record
US 10,700,349	Surface-functionalized, acidified metal oxide material in an acidified electrolyte system or an acidified electrode system In force Term ends Nov 15, 2037 · From the USPTO record	In force	Term ends Nov 15, 2037	From the USPTO record
US 11,469,417	Surface-functionalized, acidified metal oxide material in an acidified electrolyte system or an acidified electrode system In force Ends no later than Nov 15, 2037 · From the USPTO record	In force	Ends no later than Nov 15, 2037	From the USPTO record
US 10,553,861	Battery with Novel Components In force Term ends Apr 10, 2038 · High confidence	In force	Term ends Apr 10, 2038	High confidence
US 11,641,014	Battery Cell with Anode or Cathode with Nanomaterial Including Acidic Surface In force Term ends Apr 10, 2038 · High confidence	In force	Term ends Apr 10, 2038	High confidence
US 12,087,901	High Capacity Batteries and Components Thereof In force Term ends Apr 10, 2038 · High confidence	In force	Term ends Apr 10, 2038	High confidence
US 10,566,620	Battery with acidified cathode and lithium anode In force Ends no later than May 16, 2038 · From the USPTO record	In force	Ends no later than May 16, 2038	From the USPTO record

10 of 23 patents shown.

Pro members see all 23.

Pro members: see all 23 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

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.

8 pending · 2 no status recorded

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