LEN Technology Limited

13 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

May 2038

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 Jun 19, 2027
The maintenance fee for Load switch circuit and control method (US 11,848,667) comes due Jun 19, 2027. Unpaid by Dec 20, 2027, it lapses early.
1 fee due Aug 18, 2027
The maintenance fee for Coupled inductor in a DC-DC converter (US 10,566,899) comes due Aug 18, 2027. Unpaid by Feb 18, 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 10,566,899	Coupled inductor in a DC-DC converter In force Term ends May 22, 2038 · From the USPTO record	In force	Term ends May 22, 2038	From the USPTO record
US 11,239,838	Driving device and method of power device In force Term ends May 1, 2040 · From the USPTO record	In force	Term ends May 1, 2040	From the USPTO record
US 11,245,394	Power device driving device and driving method In force Term ends Aug 15, 2040 · From the USPTO record	In force	Term ends Aug 15, 2040	From the USPTO record
US 11,469,752	Power device driver and method In force Term ends Nov 26, 2040 · From the USPTO record	In force	Term ends Nov 26, 2040	From the USPTO record
US 11,394,382	Load switch circuit and control method In force Term ends Dec 2, 2040 · From the USPTO record	In force	Term ends Dec 2, 2040	From the USPTO record
US 11,848,667	Load switch circuit and control method In force Term ends Dec 2, 2040 · From the USPTO record	In force	Term ends Dec 2, 2040	From the USPTO record
US 12,342,431	LED control method and system In force Term ends Jan 21, 2043 · From the USPTO record	In force	Term ends Jan 21, 2043	From the USPTO record
US 12,506,401	Hybrid Power Transistor Apparatus and Control Method In force Term ends Oct 22, 2043 · Medium confidence	In force	Term ends Oct 22, 2043	Medium confidence
US 12,278,644	ADC Apparatus and Control Method In force Term ends Nov 13, 2043 · High confidence	In force	Term ends Nov 13, 2043	High confidence
US 12,362,558	ESD Protection Apparatus and Control Method In force Term ends Dec 8, 2043 · High confidence	In force	Term ends Dec 8, 2043	High confidence

10 of 13 patents shown.

Pro members see all 13.

Pro members: see all 13 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.