Leitner S.Pa.

13 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

Jun 2029

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 Jun 8 to 10, 2027 · next Jun 8
1 fee due Oct 12, 2027
The maintenance fee for Wind Power Generator Equipped with a Cooling System (US 9,312,741) comes due Oct 12, 2027. Unpaid by Apr 12, 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 9,312,741	Wind Power Generator Equipped with a Cooling System In force Term ends Jun 16, 2029 · High confidence	In force	Term ends Jun 16, 2029	High confidence
US 10,505,419	Wind Power Generator Equipped with a Cooling System In force Term ends Jun 16, 2029 · High confidence	In force	Term ends Jun 16, 2029	High confidence
US 8,659,867	Wind Power System for Generating Electric Energy In force Term ends Nov 3, 2030 · High confidence	In force	Term ends Nov 3, 2030	High confidence
US 8,492,919	Wind Power Generator Equipped with a Cooling System In force Term ends Feb 11, 2031 · High confidence	In force	Term ends Feb 11, 2031	High confidence
US 9,209,665	Fluid-cooled wind turbine In force Term ends May 12, 2032 · From the USPTO record	In force	Term ends May 12, 2032	From the USPTO record
US 8,975,770	Wind Power Turbine Electric Generator and Wind Power Turbine Equipped with an Electric Generator In force Term ends Jul 24, 2032 · High confidence	In force	Term ends Jul 24, 2032	High confidence
US 8,912,680	Wind Power Turbine Rotary Electric Machine In force Term ends Feb 19, 2033 · High confidence	In force	Term ends Feb 19, 2033	High confidence
US 9,714,641	Wind Power Turbine for Generating Electric Energy In force Term ends Jan 1, 2034 · High confidence	In force	Term ends Jan 1, 2034	High confidence
US 10,215,227	Control Method, Program and System for Controlling the Bearing Preload of a Wind Turbine and Wind Turbine Comprising Such Control System In force Term ends Mar 24, 2034 · High confidence	In force	Term ends Mar 24, 2034	High confidence
US 9,874,199	Wind Turbine Rotating Electric Machine Frame, and Rotating Electric Machine In force Term ends Apr 17, 2034 · High confidence	In force	Term ends Apr 17, 2034	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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