CTK Co., Ltd.

13 patents currently held · Updated Nov 14, 2026

1 more in force is now held by another company

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

Ending by 2030

Aug 2030

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 Oct 23, 2027
The maintenance fee for Cosmetic Container Having Wiper Capable of Removing Cosmetic Liquid from Application Support Rod Having Non-Circular Cross-Sectional Area (US 11,963,600) comes due Oct 23, 2027. Unpaid by Apr 24, 2028, 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 D762,474	Dispensing tip for package In force Term ends Aug 2, 2030 · From the USPTO record	In force	Term ends Aug 2, 2030	From the USPTO record
US 8,807,147	Cosmetic powder container In force Term ends Jun 7, 2031 · From the USPTO record	In force	Term ends Jun 7, 2031	From the USPTO record
US 9,930,952	Compact type of airtight cosmetic container In force Term ends May 11, 2034 · From the USPTO record	In force	Term ends May 11, 2034	From the USPTO record
US 9,795,204	Compact Using Applicator as Pushbutton In force Term ends Sep 30, 2034 · High confidence	In force	Term ends Sep 30, 2034	High confidence
US 9,894,980	Rotary-Push Type Cosmetic Container In force Term ends Apr 30, 2035 · High confidence	In force	Term ends Apr 30, 2035	High confidence
US 10,334,931	Puff-embedded cosmetic powder container In force Term ends Dec 3, 2035 · High confidence	In force	Term ends Dec 3, 2035	High confidence
US D956,784	Display screen with graphical user interface In force Term ends Jul 5, 2037 · From the USPTO record	In force	Term ends Jul 5, 2037	From the USPTO record
US 10,869,535	Airtight lip cosmetic case having improved sealing capability In force Term ends Sep 19, 2037 · From the USPTO record	In force	Term ends Sep 19, 2037	From the USPTO record
US 11,140,965	Airtight lip cosmetic case of which inside is doubly sealed In force Term ends Sep 20, 2037 · From the USPTO record	In force	Term ends Sep 20, 2037	From the USPTO record
US 11,963,600	Cosmetic Container Having Wiper Capable of Removing Cosmetic Liquid from Application Support Rod Having Non-Circular Cross-Sectional Area In force Term ends Nov 10, 2040 · High confidence	In force	Term ends Nov 10, 2040	High confidence

10 of 13 patents shown.

Pro members see all 13.

Pro members: see all 13 patents

Also on record, not counted in the 13: 1 patent in force now held by others · 8 lapsed for an unpaid fee. List them

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.

6 no status recorded

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