BESST, Inc.

9 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

Oct 2027

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 Sep 15, 2027
The maintenance fee for Selective extraction of fluids from subsurface wells (US 9,284,722) comes due Sep 15, 2027. Unpaid by Mar 15, 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 9 of 9

Patent	Title	Status	Expires	Confidence
US 8,151,879	Zone isolation assembly and method for isolating a fluid zone in an existing subsurface well In force Term ends Oct 6, 2027 · From the USPTO record	In force	Term ends Oct 6, 2027	From the USPTO record
US 7,556,097	Docking receiver of a zone isolation assembly for a subsurface well In force Term ends Oct 17, 2027 · From the USPTO record	In force	Term ends Oct 17, 2027	From the USPTO record
US 10,024,142	Selective extraction of fluids from subsurface wells In force Term ends Apr 25, 2034 · From the USPTO record	In force	Term ends Apr 25, 2034	From the USPTO record
US 9,284,722	Selective extraction of fluids from subsurface wells In force Term ends Jul 22, 2034 · From the USPTO record	In force	Term ends Jul 22, 2034	From the USPTO record
US 10,738,603	Water sampling assembly and method for groundwater production wells and boreholes In force Term ends Sep 7, 2037 · From the USPTO record	In force	Term ends Sep 7, 2037	From the USPTO record
US 10,677,626	Flowmeter profiling system for use in groundwater production wells and boreholes In force Term ends May 9, 2038 · From the USPTO record	In force	Term ends May 9, 2038	From the USPTO record
US 11,378,494	Fluid sample collection system for pumped fluid source In force Term ends Jul 21, 2038 · From the USPTO record	In force	Term ends Jul 21, 2038	From the USPTO record
US 10,801,928	Fluid sample collection system for pumped fluid source In force Term ends Dec 30, 2038 · From the USPTO record	In force	Term ends Dec 30, 2038	From the USPTO record
US 12,416,235	Stacked dynamic steady-state flow and chemistry profiling for long-screened test wells used in mud rotary pilot holes In force Term ends Dec 1, 2043 · From the USPTO record	In force	Term ends Dec 1, 2043	From the USPTO record

Also on record, not counted in the 9: 5 lapsed for an unpaid fee. 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.

5 no status recorded

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