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43 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

Aug 2031

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 Mar 19, 2027
The maintenance fee for Water Treatment System (US 11,759,730) comes due Mar 19, 2027. Unpaid by Sep 20, 2027, it lapses early.
1 fee due Apr 10, 2027
The maintenance fee for Disk-Pack Turbine (US 11,780,743) comes due Apr 10, 2027. Unpaid by Oct 12, 2027, it lapses early.
3 fees due May 5 to 14, 2027 · next May 5
2 fees due Sep 3 to 5, 2027 · next Sep 3

Which patents, and when each one lapses · Pro

Recent changes

7 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 8,623,212	Water treatment and revitalization system and method In force Term ends Aug 19, 2031 · From the USPTO record	In force	Term ends Aug 19, 2031	From the USPTO record
US 8,636,910	Water treatment and revitalization system and method In force Term ends Aug 19, 2031 · From the USPTO record	In force	Term ends Aug 19, 2031	From the USPTO record
US 12,734,477	Gas Separation Device System Using Waveform Disks In force Term ends Oct 15, 2031 · Medium confidence	In force	Term ends Oct 15, 2031	Medium confidence
US 12,760,737	System with a Disk-Pack Turbine having disks with waveform patterns In force Term ends Oct 28, 2031 · High confidence	In force	Term ends Oct 28, 2031	High confidence
US 11,045,750	Water Treatment System and Method In force Term ends Aug 24, 2032 · High confidence	In force	Term ends Aug 24, 2032	High confidence
US 11,344,898	Disk-pack turbine for water treatment systems In force Term ends Aug 24, 2032 · From the USPTO record	In force	Term ends Aug 24, 2032	From the USPTO record
US 11,628,384	Water Processing System and Arrangement In force Term ends Aug 24, 2032 · Medium confidence	In force	Term ends Aug 24, 2032	Medium confidence
US 12,161,955	Disk-Pack Turbine In force Term ends Aug 24, 2032 · High confidence	In force	Term ends Aug 24, 2032	High confidence
US 11,919,011	Retrofit attachments for water treatment systems In force Term ends Aug 25, 2032 · From the USPTO record	In force	Term ends Aug 25, 2032	From the USPTO record
US 12,649,124	Disk Array for Use in a System and a Method for Separating Fluids In force Term ends Sep 22, 2032 · High confidence	In force	Term ends Sep 22, 2032	High confidence

10 of 43 patents shown.

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Pro members: see all 43 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

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.

9 pending · 1 abandoned

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