Space Charge, LLC

11 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

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 Feb 20, 2027
The maintenance fee for Thermionic wave generator (TWG) (US 10,388,496) comes due Feb 20, 2027. Unpaid by Aug 20, 2027, it lapses early.
1 fee due Mar 26, 2027
The maintenance fee for Thermionic wave generator (TWG) (US 11,769,653) comes due Mar 26, 2027. Unpaid by Sep 27, 2027, it lapses early.
1 fee due Sep 24, 2027
The maintenance fee for Rugged, gel-free, lithium-free, high energy density solid-state electrochemical energy storage devices (US 10,601,074) comes due Sep 24, 2027. Unpaid by Mar 24, 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.

Patent	Title	Status	Expires	Confidence
US 8,259,432	Capacitors using preformed dielectric In force Term ends Nov 18, 2030 · From the USPTO record	In force	Term ends Nov 18, 2030	From the USPTO record
US 9,853,325	Rugged, gel-free, lithium-free, high energy density solid-state electrochemical energy storage devices In force Term ends Jun 28, 2032 · From the USPTO record	In force	Term ends Jun 28, 2032	From the USPTO record
US 10,199,682	Rugged, gel-free, lithium-free, high energy density solid-state electrochemical energy storage devices In force Ends no later than Jun 28, 2032 · From the USPTO record	In force	Ends no later than Jun 28, 2032	From the USPTO record
US 10,601,074	Rugged, gel-free, lithium-free, high energy density solid-state electrochemical energy storage devices In force Ends no later than Jun 28, 2032 · From the USPTO record	In force	Ends no later than Jun 28, 2032	From the USPTO record
US 11,996,517	Electrochemical energy storage devices In force Term ends Jun 28, 2032 · From the USPTO record	In force	Term ends Jun 28, 2032	From the USPTO record
US 11,527,774	Electrochemical energy storage devices In force Term ends Oct 20, 2032 · From the USPTO record	In force	Term ends Oct 20, 2032	From the USPTO record
US 10,388,496	Thermionic wave generator (TWG) In force Term ends Dec 13, 2038 · From the USPTO record	In force	Term ends Dec 13, 2038	From the USPTO record
US 10,840,072	Thermionic wave generator (TWG) In force Ends no later than Dec 13, 2038 · From the USPTO record	In force	Ends no later than Dec 13, 2038	From the USPTO record
US 10,658,705	Thin-film solid-state energy storage devices In force Ends no later than Mar 7, 2039 · From the USPTO record	In force	Ends no later than Mar 7, 2039	From the USPTO record
US 11,769,653	Thermionic wave generator (TWG) In force Term ends May 21, 2039 · From the USPTO record	In force	Term ends May 21, 2039	From the USPTO record

10 of 11 patents shown.

Pro members see all 11.

Pro members: see all 11 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.

3 no status recorded

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