WPT LLC

8 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 2032

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 Jan 4, 2027
The maintenance fee for System and method for preventing total plant shutdown due to low temperature excursion (US 11,692,555) comes due Jan 4, 2027. Unpaid by Jul 6, 2027, it lapses early.
1 fee due Feb 27, 2027
The maintenance fee for Elastic floor covering in the form of a web product that can be rolled up (US 10,392,744) comes due Feb 27, 2027. Unpaid by Aug 27, 2027, it lapses early.
1 fee due Jun 3, 2027
The maintenance fee for Underlay mat for floor coverings (US 10,493,736) comes due Jun 3, 2027. Unpaid by Dec 3, 2027, 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 8 of 8

Patent	Title	Status	Expires	Confidence
US 8,703,064	Hydrocabon cracking furnace with steam addition to lower mono-nitrogen oxide emissions In force Term ends Aug 21, 2032 · From the USPTO record	In force	Term ends Aug 21, 2032	From the USPTO record
US 11,692,555	System and method for preventing total plant shutdown due to low temperature excursion In force Term ends Oct 28, 2033 · From the USPTO record	In force	Term ends Oct 28, 2033	From the USPTO record
US 10,392,744	Elastic floor covering in the form of a web product that can be rolled up In force Term ends Apr 9, 2034 · From the USPTO record	In force	Term ends Apr 9, 2034	From the USPTO record
US 10,274,907	System and Method for Preventing Total Plant Shutdown Due to Low Temperature Excursion In force Term ends Jan 18, 2036 · High confidence	In force	Term ends Jan 18, 2036	High confidence
US 11,486,409	System and method for preventing total plant shutdown due to low temperature excursion In force Term ends Mar 2, 2036 · From the USPTO record	In force	Term ends Mar 2, 2036	From the USPTO record
US 11,186,071	Underlay mat for floor coverings In force Term ends Dec 22, 2036 · From the USPTO record	In force	Term ends Dec 22, 2036	From the USPTO record
US 9,988,821	Floor covering element with slip resistant backing In force Term ends Jan 12, 2037 · From the USPTO record	In force	Term ends Jan 12, 2037	From the USPTO record
US 10,493,736	Underlay mat for floor coverings In force Term ends Feb 21, 2037 · From the USPTO record	In force	Term ends Feb 21, 2037	From the USPTO record

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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