Phoenixdarts Co., Ltd.

28 patents currently held · Updated Nov 15, 2026

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

Previously recorded as Hong International Corp. (to 2019)

Ending by 2030

Dec 2028

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.

2 fees due Jan 7 to 9, 2027 · next Jan 7
1 fee due Jun 17, 2027
The maintenance fee for Method for determining cheating in dart game, device and server (US 10,507,392) comes due Jun 17, 2027. Unpaid by Dec 17, 2027, it lapses early.
1 fee due Aug 13, 2027
The maintenance fee for Dart game apparatus and dart game system with an image projector (US 11,898,826) comes due Aug 13, 2027. Unpaid by Feb 14, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

1 of the patents on this record was granted since Aug 17, 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 D718,817	Plate for an electrical dart game machine In force Term ends Dec 2, 2028 · From the USPTO record	In force	Term ends Dec 2, 2028	From the USPTO record
US 9,072,975	Network dart game system for participating a tournament and method thereof In force Term ends Aug 25, 2030 · From the USPTO record	In force	Term ends Aug 25, 2030	From the USPTO record
US 8,622,794	Network dart game system for competition participation and method thereof In force Term ends Nov 10, 2030 · From the USPTO record	In force	Term ends Nov 10, 2030	From the USPTO record
US D814,573	Electronic dart machine In force Term ends Apr 3, 2033 · From the USPTO record	In force	Term ends Apr 3, 2033	From the USPTO record
US 9,453,712	Game apparatus and game data authentication method thereof In force Term ends May 22, 2033 · From the USPTO record	In force	Term ends May 22, 2033	From the USPTO record
US 9,739,575	Dart game system In force Term ends Jul 30, 2033 · From the USPTO record	In force	Term ends Jul 30, 2033	From the USPTO record
US 10,345,083	Dart game device interworking with external device, gaming system and method In force Term ends Oct 26, 2033 · From the USPTO record	In force	Term ends Oct 26, 2033	From the USPTO record
US 9,931,575	Dart game device comprising image-capture device for capturing images of dart games In force Term ends Jan 3, 2034 · From the USPTO record	In force	Term ends Jan 3, 2034	From the USPTO record
US 10,109,158	Dart game device and dart game method providing betting mode, and computer-readable medium In force Term ends Oct 21, 2034 · From the USPTO record	In force	Term ends Oct 21, 2034	From the USPTO record
US 10,066,908	Dart game device allowing authentication using throw line in remote multi-mode In force Term ends Feb 20, 2035 · From the USPTO record	In force	Term ends Feb 20, 2035	From the USPTO record

10 of 28 patents shown.

Pro members see all 28.

Pro members: see all 28 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.

5 pending · 2 no status recorded

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