HF Scientific, LLC

10 patents currently held · Updated Nov 15, 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

Jan 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 Feb 1, 2027
The maintenance fee for Water quality test using sodium nitroprusside solutions (US 11,713,387) comes due Feb 1, 2027. Unpaid by Aug 2, 2027, it lapses early.
1 fee due Apr 10, 2027
The maintenance fee for Method and apparatus for detecting trace amounts of copper and silver in water (US 11,782,043) comes due Apr 10, 2027. Unpaid by Oct 12, 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 10 of 10

Patent	Title	Status	Expires	Confidence
US 8,119,068	Fluid content monitor In force Term ends Jan 12, 2027 · From the USPTO record	In force	Term ends Jan 12, 2027	From the USPTO record
US 7,794,660	Fluid content monitor In force Term ends Jul 10, 2029 · From the USPTO record	In force	Term ends Jul 10, 2029	From the USPTO record
US D858,328	Water analysis instrument In force Term ends Sep 3, 2034 · From the USPTO record	In force	Term ends Sep 3, 2034	From the USPTO record
US D893,024	Cap for a solution bag In force Term ends Aug 11, 2035 · From the USPTO record	In force	Term ends Aug 11, 2035	From the USPTO record
US 10,883,925	Spectrophotometer for use in explosive atmospheres In force Term ends Jan 27, 2039 · From the USPTO record	In force	Term ends Jan 27, 2039	From the USPTO record
US 11,312,839	Method and composition for preserving sodium nitroprusside solutions In force Term ends Mar 7, 2039 · From the USPTO record	In force	Term ends Mar 7, 2039	From the USPTO record
US 11,713,387	Water quality test using sodium nitroprusside solutions In force Ends no later than Mar 7, 2039 · From the USPTO record	In force	Ends no later than Mar 7, 2039	From the USPTO record
US 11,137,373	QCM measurement of scale formation In force Term ends Oct 7, 2039 · From the USPTO record	In force	Term ends Oct 7, 2039	From the USPTO record
US 11,782,043	Method and apparatus for detecting trace amounts of copper and silver in water In force Ends no later than Apr 27, 2040 · From the USPTO record	In force	Ends no later than Apr 27, 2040	From the USPTO record
US 11,480,556	Method and apparatus for detecting trace amounts of copper and silver in water In force Term ends Apr 30, 2041 · From the USPTO record	In force	Term ends Apr 30, 2041	From the USPTO record

Also on record, not counted in the 10: 9 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

Every application published under this name has become a patent.