Welt Corp., Ltd.

8 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

Feb 2037

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 3, 2027
The maintenance fee for Smart belt and control method thereof (US 10,398,355) comes due Mar 3, 2027. Unpaid by Sep 3, 2027, it lapses early.
1 fee due Apr 24, 2027
The maintenance fee for Systems and Methods for the Treatment of Symptoms Associated with Migraines (US 11,793,472) comes due Apr 24, 2027. Unpaid by Oct 25, 2027, it lapses early.
1 fee due Jul 9, 2027
The maintenance fee for Method of diagnosis based on digital biomarker and apparatus for performing the method (US 11,869,663) comes due Jul 9, 2027. Unpaid by Jan 10, 2028, it lapses early.

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Recent changes

1 of the patents on this record was 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.

Showing 1 to 8 of 8

Patent	Title	Status	Expires	Confidence
US D942,317	Hook for belt buckles In force Term ends Feb 1, 2037 · From the USPTO record	In force	Term ends Feb 1, 2037	From the USPTO record
US D942,318	Belt buckle In force Term ends Feb 1, 2037 · From the USPTO record	In force	Term ends Feb 1, 2037	From the USPTO record
US 10,398,355	Smart belt and control method thereof In force Term ends May 31, 2037 · From the USPTO record	In force	Term ends May 31, 2037	From the USPTO record
US 10,765,345	Method and System for Determining a Length of an Object Using an Electronic Device In force Term ends Oct 2, 2037 · High confidence	In force	Term ends Oct 2, 2037	High confidence
US 11,793,472	Systems and Methods for the Treatment of Symptoms Associated with Migraines In force Term ends May 2, 2041 · High confidence	In force	Term ends May 2, 2041	High confidence
US 11,869,663	Method of diagnosis based on digital biomarker and apparatus for performing the method In force Term ends Jun 3, 2041 · From the USPTO record	In force	Term ends Jun 3, 2041	From the USPTO record
US 12,040,087	Method of controlling user equipment for medical check-up and apparatus for performing the method In force Term ends Nov 19, 2041 · From the USPTO record	In force	Term ends Nov 19, 2041	From the USPTO record
US 12,733,872	Method of Disease Management Using Voice Data and Apparatus for Performing the Method In force Term ends Nov 13, 2044 · High confidence	In force	Term ends Nov 13, 2044	High confidence

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 pending · 2 abandoned · 8 no status recorded

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