Ascendis Pharma A/S

41 patents currently held · Updated Nov 15, 2026

17 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 4 name spellings.

Ending by 2030

Jun 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.

1 fee due Dec 27, 2026
The maintenance fee for Auto Injector with Variable Plunger Force (US 11,684,724) comes due Dec 27, 2026. Unpaid by Jun 28, 2027, it lapses early.
1 fee due Feb 28, 2027
The maintenance fee for Auto Injector with Charger Safety (US 11,738,147) comes due Feb 28, 2027. Unpaid by Aug 30, 2027, it lapses early.
1 fee due May 3, 2027
The maintenance fee for Prodrugs containing an aromatic amine connected by an amido bond to a linker (US 9,173,953) comes due May 3, 2027. Unpaid by Nov 3, 2027, it lapses early.
1 fee due Jun 30, 2027
The maintenance fee for VEGF neutralizing prodrugs for the treatment of ocular conditions (US 10,519,226) comes due Jun 30, 2027. Unpaid by Jan 3, 2028, it lapses early.
1 fee due Aug 13, 2027
The maintenance fee for Conjugation method for carrier-linked prodrugs (US 11,896,671) comes due Aug 13, 2027. Unpaid by Feb 14, 2028, it lapses early.
1 fee due Sep 8, 2027
The maintenance fee for Sterilization of Biodegradable Hydrogels (US 9,278,139) comes due Sep 8, 2027. Unpaid by Mar 8, 2028, it lapses early.
1 fee due Oct 30, 2027
The maintenance fee for Auto injector with adaptable air-shot mechanism (US 11,969,581) comes due Oct 30, 2027. Unpaid by May 1, 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 7,968,085	Hydrogel Formulations In force Term ends Jun 16, 2028 · High confidence	In force	Term ends Jun 16, 2028	High confidence
US 8,986,609	Sterilization of Biodegradable Hydrogels In force Term ends Oct 28, 2030 · High confidence	In force	Term ends Oct 28, 2030	High confidence
US 9,278,139	Sterilization of Biodegradable Hydrogels In force Term ends Oct 28, 2030 · High confidence	In force	Term ends Oct 28, 2030	High confidence
US 9,533,056	Dipeptide-based prodrug linkers for aliphatic amine-containing drugs In force Term ends Jan 21, 2031 · From the USPTO record	In force	Term ends Jan 21, 2031	From the USPTO record
US 11,559,482	Biodegradable Polyethylene Glycol Based Water-Insoluble Hydrogels In force Term ends Apr 7, 2031 · High confidence	In force	Term ends Apr 7, 2031	High confidence
US 8,906,847	Prodrug comprising a drug linker conjugate In force Term ends Apr 30, 2031 · From the USPTO record	In force	Term ends Apr 30, 2031	From the USPTO record
US 8,980,242	Aliphatic Prodrug Linker In force Term ends May 17, 2031 · High confidence	In force	Term ends May 17, 2031	High confidence
US 9,173,953	Prodrugs containing an aromatic amine connected by an amido bond to a linker In force Term ends Nov 11, 2031 · From the USPTO record	In force	Term ends Nov 11, 2031	From the USPTO record
US 10,729,778	Carrier-linked treprostinil prodrugs In force Ends no later than Aug 10, 2032 · From the USPTO record	In force	Ends no later than Aug 10, 2032	From the USPTO record
US 10,519,226	VEGF neutralizing prodrugs for the treatment of ocular conditions In force Term ends Oct 8, 2033 · From the USPTO record	In force	Term ends Oct 8, 2033	From the USPTO record

10 of 41 patents shown.

Pro members see all 41.

Pro members: see all 41 patents

Also on record, not counted in the 41: 17 patents in force now held by others · 4 lapsed for an unpaid fee · 4 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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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.

14 pending · 24 no status recorded

List them