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12 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

Jul 2039

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 Mar 5, 2027
The maintenance fee for Method and Apparatus for Imaging Using Narrowed Bandwidth (US 11,747,739) comes due Mar 5, 2027. Unpaid by Sep 7, 2027, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

8 of the patents on this record were granted since Aug 16, 2026

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 RE51,107	Multi-Beam Inspection Methods and Systems In force Term ends Jul 3, 2039 · Low confidence	In force	Term ends Jul 3, 2039	Low confidence
US 11,747,739	Method and Apparatus for Imaging Using Narrowed Bandwidth In force Term ends Feb 10, 2040 · High confidence	In force	Term ends Feb 10, 2040	High confidence
US 12,762,392	Methods for Training Machine Learning Model for Computation Lithography In force Term ends Sep 19, 2040 · High confidence	In force	Term ends Sep 19, 2040	High confidence
US 12,399,313	Hollow-Core Fiber Based Broadband Radiation Generator with Extended Fiber Lifetime In force Term ends Jun 29, 2041 · High confidence	In force	Term ends Jun 29, 2041	High confidence
US 12,782,827	Lithographic Method In force Term ends May 12, 2042 · High confidence	In force	Term ends May 12, 2042	High confidence
US 12,443,111	Prediction Data Selection for Model Calibration to Reduce Model Prediction Uncertainty In force Term ends Aug 6, 2042 · High confidence	In force	Term ends Aug 6, 2042	High confidence
US 12,566,368	Method for Determining a Mask Pattern Comprising Optical Proximity Corrections Using a Trained Machine Learning Model In force Term ends Sep 6, 2042 · High confidence	In force	Term ends Sep 6, 2042	High confidence
US 12,743,034	Method for Determining a Focus Actuation Profile for One or More Actuators of a Lithographic Exposure Apparatus In force Term ends May 22, 2043 · High confidence	In force	Term ends May 22, 2043	High confidence
US 12,782,818	Novel Interface Definition for Lithographic Apparatus In force Term ends Sep 7, 2043 · High confidence	In force	Term ends Sep 7, 2043	High confidence
US 12,791,950	Method for Determining a Measurement Recipe and Associated Apparatuses In force Term ends Oct 2, 2043 · High confidence	In force	Term ends Oct 2, 2043	High confidence

10 of 12 patents shown.

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Pro members: see all 12 patents

Also on record, not counted in the 12: 2 lapsed for an unpaid fee · 4 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

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 abandoned

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