Krystal Inc.

11 patents currently held · Updated Nov 14, 2026

3 more in force are now held by other companies

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

Recorded under 2 name spellings.

Ending by 2030

May 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 Mar 12, 2027
The maintenance fee for Film structure and method for manufacturing the same (US 11,758,817) comes due Mar 12, 2027. Unpaid by Sep 13, 2027, it lapses early.
1 fee due Apr 27, 2027
The maintenance fee for Substrate treatment apparatus and method for manufacturing thin film (US 9,171,745) comes due Apr 27, 2027. Unpaid by Oct 27, 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 9,171,745	Substrate treatment apparatus and method for manufacturing thin film In force Term ends May 20, 2030 · From the USPTO record	In force	Term ends May 20, 2030	From the USPTO record
US 9,966,527	PBNZT ferroelectric film, sol-gel solution, film forming method and method for producing ferroelectric film In force Term ends Jul 23, 2030 · From the USPTO record	In force	Term ends Jul 23, 2030	From the USPTO record
US 9,431,242	PBNZT ferroelectric film, sol-gel solution, film forming method and method for producing ferroelectric film In force Term ends Feb 12, 2031 · From the USPTO record	In force	Term ends Feb 12, 2031	From the USPTO record
US 8,877,520	Ferroelectric film containing a perovskite structure oxide and method for manufacturing a ferroelectric film In force Term ends Jan 25, 2033 · From the USPTO record	In force	Term ends Jan 25, 2033	From the USPTO record
US 10,115,888	Method for manufacturing crystal film In force Term ends Jul 18, 2034 · From the USPTO record	In force	Term ends Jul 18, 2034	From the USPTO record
US 9,887,348	Ferroelectric ceramics and manufacturing method thereof In force Term ends Feb 12, 2035 · From the USPTO record	In force	Term ends Feb 12, 2035	From the USPTO record
US 9,773,968	Piezoelectric film, ferroelectric ceramics and inspection method of piezoelectric film In force Term ends Jul 27, 2035 · From the USPTO record	In force	Term ends Jul 27, 2035	From the USPTO record
US 9,873,948	Feroelectric ceramics and method for manufacturing the same In force Term ends May 5, 2036 · From the USPTO record	In force	Term ends May 5, 2036	From the USPTO record
US 10,115,887	Ferroelectric ceramics and method for manufacturing the same In force Term ends May 10, 2036 · From the USPTO record	In force	Term ends May 10, 2036	From the USPTO record
US 10,243,134	Piezoelectric film and piezoelectric ceramics In force Term ends Jun 16, 2037 · From the USPTO record	In force	Term ends Jun 16, 2037	From the USPTO record

10 of 11 patents shown.

Pro members see all 11.

Pro members: see all 11 patents

Also on record, not counted in the 11: 3 patents in force now held by others · 8 lapsed for an unpaid fee · 1 ended at full term. 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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