Entanglement Technologies, Inc.

8 patents currently held · Updated Nov 15, 2026

1 more in force is now held by another company

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

Ending by 2030

Oct 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.

2 fees due Jan 21, 2027
1 fee due Mar 1, 2027
The maintenance fee for Method and apparatus for implementing EIT magnetometry (US 9,121,889) comes due Mar 1, 2027. Unpaid by Sep 1, 2027, it lapses early.
1 fee due Jun 1, 2027
The maintenance fee for Cavity enhanced absorption spectroscopy with a laser modulation side-band frequency locked to the cavity (US 9,200,960) comes due Jun 1, 2027. Unpaid by Dec 1, 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 8,284,404	Cavity enhanced trace gas detection gradiometer In force Term ends Oct 7, 2028 · From the USPTO record	In force	Term ends Oct 7, 2028	From the USPTO record
US 9,121,889	Method and apparatus for implementing EIT magnetometry In force Term ends Jul 19, 2029 · From the USPTO record	In force	Term ends Jul 19, 2029	From the USPTO record
US 8,040,518	Cavity enhanced trace gas detection gradiometer In force Term ends Sep 2, 2029 · From the USPTO record	In force	Term ends Sep 2, 2029	From the USPTO record
US 8,054,073	Method and apparatus for implementing EIT magnetometry In force Term ends Jan 30, 2030 · From the USPTO record	In force	Term ends Jan 30, 2030	From the USPTO record
US 8,760,159	Method and apparatus for implementing EIT magnetometry In force Term ends Jun 2, 2030 · From the USPTO record	In force	Term ends Jun 2, 2030	From the USPTO record
US 9,086,392	T-sensor devices and methods of using same In force Term ends May 3, 2033 · From the USPTO record	In force	Term ends May 3, 2033	From the USPTO record
US 9,086,421	Device and method for cavity detected high-speed diffusion chromatography In force Term ends Nov 7, 2033 · From the USPTO record	In force	Term ends Nov 7, 2033	From the USPTO record
US 9,200,960	Cavity enhanced absorption spectroscopy with a laser modulation side-band frequency locked to the cavity In force Term ends Feb 8, 2034 · From the USPTO record	In force	Term ends Feb 8, 2034	From the USPTO record

Also on record, not counted in the 8: 1 patent in force now held by others. 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.