KNF Flodos AG

10 patents currently held · Updated Nov 15, 2026

Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

Ending by 2030

Jan 2029

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 Oct 16, 2027
The maintenance fee for Valve and diaphragm pump with inlet and outlet valves (US 11,959,555) comes due Oct 16, 2027. Unpaid by Apr 17, 2028, it lapses early.

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Recent changes

2 of the patents on this record were granted since Aug 17, 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.

Showing 1 to 10 of 10

Patent	Title	Status	Expires	Confidence
US 8,366,414	Diaphragm pump In force Term ends Jan 20, 2029 · From the USPTO record	In force	Term ends Jan 20, 2029	From the USPTO record
US 8,474,365	Diaphragm pump In force Term ends Mar 12, 2030 · From the USPTO record	In force	Term ends Mar 12, 2030	From the USPTO record
US 9,341,172	Positive displacement pump In force Term ends Jul 10, 2034 · From the USPTO record	In force	Term ends Jul 10, 2034	From the USPTO record
US 10,260,493	Membrane Pump In force Term ends Jul 12, 2037 · High confidence	In force	Term ends Jul 12, 2037	High confidence
US 11,333,143	Oscillating displacement pump having an electrodynamic drive and method for operation thereof In force Term ends Apr 1, 2039 · From the USPTO record	In force	Term ends Apr 1, 2039	From the USPTO record
US D1,029,885	Pump for liquids In force Term ends Jun 4, 2039 · From the USPTO record	In force	Term ends Jun 4, 2039	From the USPTO record
US D1,125,278	Pump for Liquids In force Term ends May 5, 2041 · High confidence	In force	Term ends May 5, 2041	High confidence
US 11,959,555	Valve and diaphragm pump with inlet and outlet valves In force Term ends Jun 6, 2041 · From the USPTO record	In force	Term ends Jun 6, 2041	From the USPTO record
US D1,150,141	Pump for Liquids In force Term ends Sep 29, 2041 · High confidence	In force	Term ends Sep 29, 2041	High confidence
US D1,154,379	Flowmeter In force Term ends Oct 20, 2041 · High confidence	In force	Term ends Oct 20, 2041	High confidence

Also on record, not counted in the 10: 8 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 no status recorded

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