Proventia Oy

10 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

Jan 2035

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 Feb 28, 2027
The maintenance fee for Mixer arrangement and a method of mixing for after-treatment of exhaust gas (US 11,739,676) comes due Feb 28, 2027. Unpaid by Aug 30, 2027, it lapses early.
1 fee due May 26, 2027
The maintenance fee for Method, apparatus and system for aftertreatment of exhaust gas comprising inline housing (US 10,486,117) comes due May 26, 2027. Unpaid by Nov 26, 2027, it lapses early.
1 fee due Oct 9, 2027
The maintenance fee for Arrangement for testing electric car components (US 11,953,557) comes due Oct 9, 2027. Unpaid by Apr 10, 2028, 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.

Showing 1 to 10 of 10

Patent	Title	Status	Expires	Confidence
US 10,188,994	Method, apparatus and system for aftertreatment of exhaust gas In force Term ends Jan 11, 2035 · From the USPTO record	In force	Term ends Jan 11, 2035	From the USPTO record
US 10,252,225	Method, Apparatus and Mixing Device for Evenly Mixing Reactant to Exhaust Gas Flow In force Term ends Jun 20, 2036 · High confidence	In force	Term ends Jun 20, 2036	High confidence
US 10,486,117	Method, apparatus and system for aftertreatment of exhaust gas comprising inline housing In force Term ends Nov 20, 2037 · From the USPTO record	In force	Term ends Nov 20, 2037	From the USPTO record
US 11,953,557	Arrangement for testing electric car components In force Term ends Jun 5, 2039 · From the USPTO record	In force	Term ends Jun 5, 2039	From the USPTO record
US 11,739,676	Mixer arrangement and a method of mixing for after-treatment of exhaust gas In force Term ends May 20, 2040 · From the USPTO record	In force	Term ends May 20, 2040	From the USPTO record
US 12,117,367	Arrangement for Testing Vehicle Components and a Method for Setting Up an Arrangement for Testing In force Term ends Nov 22, 2041 · High confidence	In force	Term ends Nov 22, 2041	High confidence
US 12,006,857	Method in a flow device for exhaust gas aftertreatment and the flow device In force Term ends Sep 1, 2042 · From the USPTO record	In force	Term ends Sep 1, 2042	From the USPTO record
US 12,343,692	Counter-flow reactant mixing for exhaust gas aftertreatment In force Term ends Feb 28, 2043 · From the USPTO record	In force	Term ends Feb 28, 2043	From the USPTO record
US 12,163,456	Exhaust gas aftertreatment mixer In force Term ends Dec 19, 2043 · High confidence	In force	Term ends Dec 19, 2043	High confidence
US 12,421,885	Exhaust gas aftertreatment mixer In force Term ends Dec 19, 2043 · Medium confidence	In force	Term ends Dec 19, 2043	Medium confidence

Also on record, not counted in the 10: 3 ended at full term · 1 surrendered on reissue. 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.

Export every term end as CSV · Pro

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.

4 no status recorded

List them