Warner Electric Technology LLC

36 patents currently held · Updated Nov 14, 2026

Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

Recorded under 2 name spellings.

Ending by 2030

Feb 2027

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 Nov 14, 2026
2 fees due Feb 4 to 8, 2027 · next Feb 4
1 fee due Apr 29, 2027
The maintenance fee for Self-Synchronizing Clutch (US 10,458,485) comes due Apr 29, 2027. Unpaid by Oct 29, 2027, it lapses early.
1 fee due Jun 26, 2027
The maintenance fee for Power Take-Off With Bell Housing Cooling System (US 11,852,200) comes due Jun 26, 2027. Unpaid by Dec 27, 2027, it lapses early.
1 fee due Oct 7, 2027
The maintenance fee for Bistable Brake (US 10,612,610) comes due Oct 7, 2027. Unpaid by Apr 7, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

2 of the patents on this record were granted since Aug 16, 2026

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 9,309,941	Liquid Cooled Brake with Support Columns In force Term ends Feb 2, 2027 · High confidence	In force	Term ends Feb 2, 2027	High confidence
US 7,527,134	Rotational Coupling Device In force Term ends Mar 4, 2027 · High confidence	In force	Term ends Mar 4, 2027	High confidence
US 8,393,451	Rotational Coupling Device with Wear Compensation Structure In force Term ends Nov 11, 2028 · High confidence	In force	Term ends Nov 11, 2028	High confidence
US 7,975,818	Rotational Coupling Device In force Term ends Nov 18, 2028 · High confidence	In force	Term ends Nov 18, 2028	High confidence
US 8,038,575	Safety Control for Releasable Backstopping Clutch In force Term ends Feb 11, 2030 · High confidence	In force	Term ends Feb 11, 2030	High confidence
US 8,123,012	Rotational Coupling Device with Wear Compensation Structure In force Term ends Mar 31, 2030 · High confidence	In force	Term ends Mar 31, 2030	High confidence
US 8,256,598	Permanent Magnet Wrap Spring Clutch In force Term ends Dec 20, 2030 · High confidence	In force	Term ends Dec 20, 2030	High confidence
US 8,499,916	Rotational Coupling Device with Flux Leakage Path Insulator In force Term ends Jan 15, 2032 · High confidence	In force	Term ends Jan 15, 2032	High confidence
US 8,844,701	Rotational Coupling Device with Improved Drive Key Retention Structure In force Term ends Dec 27, 2032 · High confidence	In force	Term ends Dec 27, 2032	High confidence
US 8,881,882	Rotational Coupling Device with Improved Lubrication In force Term ends Feb 9, 2033 · High confidence	In force	Term ends Feb 9, 2033	High confidence

10 of 36 patents shown.

Pro members see all 36.

Pro members: see all 36 patents

Also on record, not counted in the 36: 25 lapsed for an unpaid fee · 111 ended at full term. List them

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.

1 pending · 2 abandoned · 1 no status recorded

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