Ferring Ventures Ltd.

12 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.

Previously recorded as Trizell Ltd. (to 2025)

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.

1 fee due Sep 19, 2027
The maintenance fee for Adherent cell culture substrate sampling device (US 11,932,843) comes due Sep 19, 2027. Unpaid by Mar 20, 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 11,242,504	Aseptic Bioreactor Sampling System In force Term ends Apr 3, 2037 · Medium confidence	In force	Term ends Apr 3, 2037	Medium confidence
US 11,446,249	Viral vector stabilization In force Term ends Apr 3, 2037 · From the USPTO record	In force	Term ends Apr 3, 2037	From the USPTO record
US 11,547,668	Viral vector stabilization In force Term ends Apr 3, 2037 · From the USPTO record	In force	Term ends Apr 3, 2037	From the USPTO record
US 12,116,559	Method of Manufacturing a Recombinant Polypeptide In force Ends no later than Apr 3, 2037 · Medium confidence	In force	Ends no later than Apr 3, 2037	Medium confidence
US 11,311,487	Viral vector stabilization In force Term ends Jun 21, 2037 · From the USPTO record	In force	Term ends Jun 21, 2037	From the USPTO record
US 11,261,416	Fixed-Bed Bioreactor With Constant-Flow Pump / Tubing System In force Term ends Jul 6, 2037 · High confidence	In force	Term ends Jul 6, 2037	High confidence
US 11,104,915	Viral vector assay and vector In force Term ends Aug 7, 2037 · From the USPTO record	In force	Term ends Aug 7, 2037	From the USPTO record
US 12,391,911	Adherent cell culture substrate sampling device In force Term ends Nov 9, 2037 · From the USPTO record	In force	Term ends Nov 9, 2037	From the USPTO record
US 12,264,324	Viral vector assay and vector In force Term ends Mar 4, 2038 · From the USPTO record	In force	Term ends Mar 4, 2038	From the USPTO record
US 12,178,865	CDKN2A companion diagnostic for bladder cancer interferon therapy In force Term ends Dec 11, 2038 · From the USPTO record	In force	Term ends Dec 11, 2038	From the USPTO record

10 of 12 patents shown.

Pro members see all 12.

Pro members: see all 12 patents

Also on record, not counted in the 12: 1 patent in force now held by others. 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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