ROZETATECH Co., 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

Mar 2040

Next term end

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

20262027202820292030203120322033203420352036203720382039204020412042204320442045

Fee deadlines

No maintenance fee falls due on this company's record before Nov 14, 2027.

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 11,488,460	Fire alarm system In force Term ends Mar 23, 2040 · From the USPTO record	In force	Term ends Mar 23, 2040	From the USPTO record
US 12,183,185	Fire alarm apparatus In force Term ends Mar 14, 2041 · From the USPTO record	In force	Term ends Mar 14, 2041	From the USPTO record
US 12,456,358	Fire protection method and fire protection system In force Term ends Dec 9, 2041 · From the USPTO record	In force	Term ends Dec 9, 2041	From the USPTO record
US 12,347,299	Fire alarm device having traffic control function In force Term ends Feb 20, 2042 · From the USPTO record	In force	Term ends Feb 20, 2042	From the USPTO record
US 12,640,031	Fire Protection Method and Fire Protection System In force Term ends Sep 20, 2042 · High confidence	In force	Term ends Sep 20, 2042	High confidence
US 12,525,122	Fire Alarm Apparatus for Unwanted Alarm In force Term ends Oct 7, 2042 · High confidence	In force	Term ends Oct 7, 2042	High confidence
US 12,456,364	Fire Prevention System and Evaluation Tool Calculation Method Using Same In force Term ends Nov 8, 2042 · High confidence	In force	Term ends Nov 8, 2042	High confidence
US 12,664,873	Fire Alarm Device Inspection Method and Fire Alarm Device In force Term ends May 6, 2043 · High confidence	In force	Term ends May 6, 2043	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.

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