Maxwell Technologies Global LLC

30 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

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.

1 fee due May 17, 2027
The maintenance fee for System and Methods for Managing a Degraded State of a Capacitor System (US 9,190,860) comes due May 17, 2027. Unpaid by Nov 17, 2027, it lapses early.
1 fee due Jun 8, 2027
The maintenance fee for Maximizing Life of Capacitors in Series Modules (US 9,209,653) comes due Jun 8, 2027. Unpaid by Dec 8, 2027, it lapses early.
1 fee due Aug 25, 2027
The maintenance fee for Systems and methods for improving cell balancing and cell failure detection (US 10,574,076) comes due Aug 25, 2027. Unpaid by Feb 25, 2028, it lapses early.
1 fee due Sep 1, 2027
The maintenance fee for Energy Storage Systems and Methods (US 9,272,627) comes due Sep 1, 2027. Unpaid by Mar 1, 2028, it lapses early.
1 fee due Oct 28, 2027
The maintenance fee for Collector plate for energy storage device and methods of manufacturing (US 10,636,576) comes due Oct 28, 2027. Unpaid by Apr 28, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

3 terms have ended 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 7,880,449	Capacitor Start-Up Apparatus and Method with Fail-Safe Short Circuit Protection In force Term ends Feb 8, 2027 · High confidence	In force	Term ends Feb 8, 2027	High confidence
US 7,433,174	Method of Making, Apparatus, and Article of Manufacturing for an Electrode Termination Contact Interface In force Term ends Mar 22, 2027 · High confidence	In force	Term ends Mar 22, 2027	High confidence
US 7,816,891	Active Voltage Management System for Energy Storage Device In force Term ends Apr 30, 2029 · High confidence	In force	Term ends Apr 30, 2029	High confidence
US D759,593	Ultracapacitor Module In force Term ends Jun 21, 2030 · High confidence	In force	Term ends Jun 21, 2030	High confidence
US 8,092,934	Energy Storage Device Having a Collector Plate In force Term ends Oct 26, 2030 · High confidence	In force	Term ends Oct 26, 2030	High confidence
US D774,456	Ultracapacitor Module In force Term ends Dec 20, 2030 · High confidence	In force	Term ends Dec 20, 2030	High confidence
US 9,272,627	Energy Storage Systems and Methods In force Term ends May 29, 2032 · High confidence	In force	Term ends May 29, 2032	High confidence
US 9,209,653	Maximizing Life of Capacitors in Series Modules In force Term ends Jun 25, 2032 · High confidence	In force	Term ends Jun 25, 2032	High confidence
US D792,847	Ultracapacitor module In force Term ends Jul 25, 2032 · From the USPTO record	In force	Term ends Jul 25, 2032	From the USPTO record
US 10,249,448	Carbon Surface Modification for Three-Volt Ultracapacitor In force Term ends Oct 7, 2033 · High confidence	In force	Term ends Oct 7, 2033	High confidence

10 of 30 patents shown.

Pro members see all 30.

Pro members: see all 30 patents

Also on record, not counted in the 30: 4 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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