Duplicent, LLC

29 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

Apr 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.

3 fees due Dec 6 to 20, 2026 · next Dec 6
1 fee due Feb 8, 2027
The maintenance fee for Earthquake Stabilization Device (US 11,719,013) comes due Feb 8, 2027. Unpaid by Aug 9, 2027, it lapses early.
1 fee due Mar 19, 2027
The maintenance fee for Expanding Rotor Brake (US 11,761,498) comes due Mar 19, 2027. Unpaid by Sep 20, 2027, it lapses early.
1 fee due Apr 30, 2027
The maintenance fee for Braking System (US 11,802,599) comes due Apr 30, 2027. Unpaid by Nov 1, 2027, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

2 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 11,220,245	Braking System In force Term ends Apr 12, 2037 · High confidence	In force	Term ends Apr 12, 2037	High confidence
US 12,110,092	Drone Systems and Methods In force Term ends Jan 29, 2039 · Medium confidence	In force	Term ends Jan 29, 2039	Medium confidence
US 12,415,484	Braking System In force Term ends Feb 15, 2039 · High confidence	In force	Term ends Feb 15, 2039	High confidence
US 11,053,994	Braking System In force Term ends Apr 12, 2039 · High confidence	In force	Term ends Apr 12, 2039	High confidence
US 11,802,599	Braking System In force Term ends Apr 12, 2039 · High confidence	In force	Term ends Apr 12, 2039	High confidence
US 12,679,536	Drone Systems and Methods In force Term ends Apr 23, 2039 · Medium confidence	In force	Term ends Apr 23, 2039	Medium confidence
US 11,598,383	Braking System In force Term ends May 29, 2039 · High confidence	In force	Term ends May 29, 2039	High confidence
US 11,667,372	Drone Systems and Methods In force Term ends Jun 6, 2040 · Medium confidence	In force	Term ends Jun 6, 2040	Medium confidence
US 12,683,546	Solar Panel System In force Term ends Sep 21, 2040 · Medium confidence	In force	Term ends Sep 21, 2040	Medium confidence
US 12,375,032	Solar Panel System In force Term ends Feb 19, 2041 · Medium confidence	In force	Term ends Feb 19, 2041	Medium confidence

10 of 29 patents shown.

Pro members see all 29.

Pro members: see all 29 patents

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.

9 no status recorded

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