Zoneflow Reactor Technologies, LLC

12 patents currently held · Updated Nov 14, 2026

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

Recorded under 2 name spellings.

Ending by 2030

Apr 2028

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 Apr 10, 2027
The maintenance fee for Ammonia production method (US 11,780,736) comes due Apr 10, 2027. Unpaid by Oct 12, 2027, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

1 of the patents on this record was 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 7,976,783	Reactor with jet impingment heat transfer In force Term ends Apr 27, 2028 · From the USPTO record	In force	Term ends Apr 27, 2028	From the USPTO record
US 8,235,361	Structured packing for a reactor In force Term ends Jun 29, 2030 · From the USPTO record	In force	Term ends Jun 29, 2030	From the USPTO record
US 9,403,147	Reactor packing In force Ends no later than Apr 23, 2032 · From the USPTO record	In force	Ends no later than Apr 23, 2032	From the USPTO record
US 8,932,536	Reactor packing In force Term ends Jun 8, 2033 · From the USPTO record	In force	Term ends Jun 8, 2033	From the USPTO record
US 9,592,487	Steam methane reformer system and method of performing a steam methane reforming process In force Term ends Jun 25, 2034 · From the USPTO record	In force	Term ends Jun 25, 2034	From the USPTO record
US 9,677,828	Engineered packing for heat exchange and systems and methods constructing the same In force Term ends Nov 6, 2034 · From the USPTO record	In force	Term ends Nov 6, 2034	From the USPTO record
US 11,192,081	Bayonet catalytic reactor In force Term ends Jul 3, 2040 · From the USPTO record	In force	Term ends Jul 3, 2040	From the USPTO record
US 11,433,367	Support Structure for Structured Catalyst Packings In force Term ends Jan 20, 2041 · High confidence	In force	Term ends Jan 20, 2041	High confidence
US 12,109,561	Support Structure for Structured Catalyst Packings In force Term ends Jan 20, 2041 · Medium confidence	In force	Term ends Jan 20, 2041	Medium confidence
US 11,780,736	Ammonia production method In force Term ends Jul 25, 2041 · From the USPTO record	In force	Term ends Jul 25, 2041	From the USPTO record

10 of 12 patents shown.

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Pro members: see all 12 patents

Also on record, not counted in the 12: 1 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 · 4 no status recorded

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