Voltea Limited

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

Feb 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 Dec 30, 2026
The maintenance fee for Apparatus for removal of ions, bi-directional power converter and method of operating an apparatus for removal of ions (US 9,067,216) comes due Dec 30, 2026. Unpaid by Jun 30, 2027, it lapses early.
1 fee due Feb 4, 2027
The maintenance fee for Apparatus and method for removal of ions (US 9,096,451) comes due Feb 4, 2027. Unpaid by Aug 4, 2027, it lapses early.
1 fee due Mar 3, 2027
The maintenance fee for Apparatus and method for removal of ions (US 10,399,872) comes due Mar 3, 2027. Unpaid by Sep 3, 2027, it lapses early.
1 fee due Apr 29, 2027
The maintenance fee for Apparatus for removal of ions from water and method of producing the same (US 10,457,576) comes due Apr 29, 2027. Unpaid by Oct 29, 2027, 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 8,730,650	Water purification device In force Term ends Feb 26, 2030 · From the USPTO record	In force	Term ends Feb 26, 2030	From the USPTO record
US 8,470,152	Method of Operating a Capacitive Deionization Cell Using Gentle Charge In force Term ends Jan 29, 2031 · High confidence	In force	Term ends Jan 29, 2031	High confidence
US 8,968,544	Apparatus and Method for Removal of Ions In force Term ends Feb 21, 2032 · High confidence	In force	Term ends Feb 21, 2032	High confidence
US 9,067,216	Apparatus for removal of ions, bi-directional power converter and method of operating an apparatus for removal of ions In force Term ends Apr 26, 2032 · From the USPTO record	In force	Term ends Apr 26, 2032	From the USPTO record
US 10,246,356	Apparatus for removal of ions comprising multiple stacks In force Term ends Aug 2, 2032 · From the USPTO record	In force	Term ends Aug 2, 2032	From the USPTO record
US 11,168,009	Apparatus and method for removal of ions In force Term ends Feb 9, 2033 · From the USPTO record	In force	Term ends Feb 9, 2033	From the USPTO record
US 9,096,451	Apparatus and method for removal of ions In force Term ends Sep 20, 2033 · From the USPTO record	In force	Term ends Sep 20, 2033	From the USPTO record
US 10,399,872	Apparatus and method for removal of ions In force Term ends Mar 1, 2034 · From the USPTO record	In force	Term ends Mar 1, 2034	From the USPTO record
US 9,365,440	Method of producing an apparatus for removal of ions from water In force Term ends Mar 3, 2035 · From the USPTO record	In force	Term ends Mar 3, 2035	From the USPTO record
US 10,457,576	Apparatus for removal of ions from water and method of producing the same In force Term ends Feb 8, 2036 · From the USPTO record	In force	Term ends Feb 8, 2036	From the USPTO record

10 of 11 patents shown.

Pro members see all 11.

Pro members: see all 11 patents

Also on record, not counted in the 11: 1 lapsed for an unpaid fee · 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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Published applications

Every application published under this name has become a patent.