Kopter Group AG

16 patents currently held · Updated Nov 15, 2026

Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

Ending by 2030

Jul 2032

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 Jan 9, 2027
The maintenance fee for Helicopter load hook (US 10,343,777) comes due Jan 9, 2027. Unpaid by Jul 9, 2027, 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 8,783,613	Observation port and a helicopter cabin In force Term ends Jul 7, 2032 · From the USPTO record	In force	Term ends Jul 7, 2032	From the USPTO record
US 9,701,405	Tail rotor device of a helicopter In force Term ends Jun 9, 2036 · From the USPTO record	In force	Term ends Jun 9, 2036	From the USPTO record
US D928,071	Helicopter In force Term ends Aug 17, 2036 · From the USPTO record	In force	Term ends Aug 17, 2036	From the USPTO record
US 10,150,565	Load hook substructure In force Term ends Nov 15, 2036 · From the USPTO record	In force	Term ends Nov 15, 2036	From the USPTO record
US 10,343,777	Helicopter load hook In force Term ends Jul 31, 2037 · From the USPTO record	In force	Term ends Jul 31, 2037	From the USPTO record
US 10,730,614	Rotor mast In force Term ends Aug 23, 2038 · From the USPTO record	In force	Term ends Aug 23, 2038	From the USPTO record
US 10,766,611	Helicopter rotor transmission In force Term ends Nov 30, 2038 · From the USPTO record	In force	Term ends Nov 30, 2038	From the USPTO record
US 10,759,529	Rotor blade coupling device of a rotor head for a rotorcraft In force Term ends Jan 8, 2039 · From the USPTO record	In force	Term ends Jan 8, 2039	From the USPTO record
US 11,186,385	Ground manoeuvering device with a hydraulic apparatus In force Term ends Jun 3, 2040 · From the USPTO record	In force	Term ends Jun 3, 2040	From the USPTO record
US 12,157,563	Connection between a pitch control unit arm and a pitch horn In force Term ends Apr 23, 2041 · From the USPTO record	In force	Term ends Apr 23, 2041	From the USPTO record

10 of 16 patents shown.

Pro members see all 16.

Pro members: see all 16 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

Every application published under this name has become a patent.