Atonometrics, Inc.

15 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

Oct 2029

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 Dec 4, 2026
The maintenance fee for Optical Soiling Measurement Device for Photovoltaic Arrays (US 10,312,859) comes due Dec 4, 2026. Unpaid by Jun 4, 2027, it lapses early.
1 fee due Jun 12, 2027
The maintenance fee for In-Situ I-V Measurement of a Module in a PV Array (US 11,843,349) comes due Jun 12, 2027. Unpaid by Dec 13, 2027, it lapses early.
1 fee due Aug 4, 2027
The maintenance fee for Soiling measurement device for photovoltaic arrays (US 10,554,171) comes due Aug 4, 2027. Unpaid by Feb 4, 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.

Patent	Title	Status	Expires	Confidence
US 8,440,979	Ultraviolet light exposure chamber for photovoltaic modules In force Term ends Oct 16, 2029 · From the USPTO record	In force	Term ends Oct 16, 2029	From the USPTO record
US 8,773,021	Light Soaking System for Photovoltaic Modules In force Term ends Mar 11, 2031 · High confidence	In force	Term ends Mar 11, 2031	High confidence
US 9,347,827	System for field measurement and calibration of photovoltaic reference devices In force Term ends Apr 18, 2033 · From the USPTO record	In force	Term ends Apr 18, 2033	From the USPTO record
US 9,564,853	Soiling measurement system for photovoltaic arrays In force Term ends Nov 21, 2033 · From the USPTO record	In force	Term ends Nov 21, 2033	From the USPTO record
US 9,800,202	Soiling measurement system for photovoltaic arrays In force Ends no later than Nov 21, 2033 · From the USPTO record	In force	Ends no later than Nov 21, 2033	From the USPTO record
US 10,284,139	Soiling Measurement System for Photovoltaic Arrays In force Ends no later than Nov 21, 2033 · Low confidence	In force	Ends no later than Nov 21, 2033	Low confidence
US 10,014,821	Soiling measurement system for photovoltaic arrays In force Term ends Jan 18, 2034 · From the USPTO record	In force	Term ends Jan 18, 2034	From the USPTO record
US 10,171,029	Soiling measurement device for photovoltaic arrays employing microscopic imaging In force Term ends Jan 22, 2038 · From the USPTO record	In force	Term ends Jan 22, 2038	From the USPTO record
US 10,312,859	Optical Soiling Measurement Device for Photovoltaic Arrays In force Term ends Jan 22, 2038 · High confidence	In force	Term ends Jan 22, 2038	High confidence
US 10,554,171	Soiling measurement device for photovoltaic arrays In force Term ends Mar 2, 2038 · From the USPTO record	In force	Term ends Mar 2, 2038	From the USPTO record

10 of 15 patents shown.

Pro members see all 15.

Pro members: see all 15 patents

Also on record, not counted in the 15: 1 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.

2 no status recorded

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