Wetend Technologies Oy

10 patents currently held · Updated Nov 15, 2026

1 more in force is now held by another company

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 2029

Next term end

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

20262027202820292030203120322033203420352036203720382039204020412042204320442045

Fee deadlines

No maintenance fee falls due on this company's record before Nov 15, 2027.

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.

Showing 1 to 10 of 10

Patent	Title	Status	Expires	Confidence
US 8,747,619	Method for Crystallizing a Filler in Connection with a Fiber Web Process, and an Approach System for a Fiber Web Machine In force Term ends Feb 19, 2029 · High confidence	In force	Term ends Feb 19, 2029	High confidence
US 8,480,854	Method for Crystallizing a Filler in Connection with a Fiber Web Process, and an Approach System for a Fiber Web Machine In force Term ends Dec 11, 2029 · High confidence	In force	Term ends Dec 11, 2029	High confidence
US 9,028,767	Method and a Reactor for Mixing One or More Chemicals into a Process Liquid Flow In force Term ends Jul 25, 2031 · High confidence	In force	Term ends Jul 25, 2031	High confidence
US 9,339,774	Method and apparatus for mixing various flows into a process liquid flow In force Term ends Feb 1, 2033 · From the USPTO record	In force	Term ends Feb 1, 2033	From the USPTO record
US 9,649,607	Arrangement for mixing a fluid to a process liquid and a method of operating the arrangement In force Term ends Feb 21, 2034 · From the USPTO record	In force	Term ends Feb 21, 2034	From the USPTO record
US 9,708,772	A Method of Providing Fiber Web Making Furnish with Filler, and Paper or Paper Board In force Term ends Apr 25, 2034 · High confidence	In force	Term ends Apr 25, 2034	High confidence
US 9,447,543	Arrangement for and a method of manufacturing a fibrous web In force Term ends Aug 21, 2035 · From the USPTO record	In force	Term ends Aug 21, 2035	From the USPTO record
US 11,578,463	Dosing of Nanocellulose Suspension in Gel Phase In force Term ends Dec 27, 2038 · High confidence	In force	Term ends Dec 27, 2038	High confidence
US 11,352,749	Method of and an Arrangement for Adding a Chemical to an Approach Flow System of a Fiber Web Machine In force Term ends Sep 29, 2040 · High confidence	In force	Term ends Sep 29, 2040	High confidence
US 11,459,700	Method of and an Arrangement for Adding at Least One Additional Stock Component to an Approach Flow System of a Fiber Web Machine In force Term ends Dec 18, 2040 · High confidence	In force	Term ends Dec 18, 2040	High confidence

Also on record, not counted in the 10: 1 patent in force now held by others · 6 lapsed for an unpaid fee · 3 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 · 5 no status recorded

List them