Also listed on Biovalve Technologies, Inc., an earlier holder on the record. The recorded assignments below show how it moved.

Collateral for a security interest recorded Aug 12, 2025 (Wilmington Trust, National Association).

Term ends Jul 10, 2027 · High confidence

Computed 20-year base term

Held by MannKind Corporation

Filed Dec 16, 2008 as application 12/336,395 · Granted Jul 7, 2015

Base term plus 1173 days of patent term adjustment (USPTO delay)

Today

20 years from filing

Term ends Jul 10, 2027

2004 2027

Clock starts
Apr 23, 2004

Term ends
Jul 10, 2027

Granted
Jul 7, 2015

base term patent term adjustment fee events Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know

1,173

Days of term adjustment

Read from the USPTO patent term adjustment record, not recalculated here.

None

Terminal disclaimer

No disclaimer on this record.

2 of 3

Maintenance fees paid

Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.

Family applications on record here

Applications sharing this one's continuity chain whose file history this site holds. The family may have others.

This patent's term runs 1173 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are paid so far. Confidence: High. from the record

How we calculated this date

One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.

Step	Input	Date after this step	Confidence
Base term, 20 years from filing	Clock starts Apr 23, 2004, when application 10/831,354, the earliest non-provisional in its chain, was filed (this one was filed Dec 16, 2008)	Apr 23, 2024	High confidence
Continuity chain	Every parent in the chain resolved	no change	High confidence
Patent term adjustment	+1173 days, USPTO patent term adjustment record	Jul 10, 2027	High confidence
Terminal disclaimer cap	None on record	no cap applied	High confidence
Patent term extension	None on file	no change	High confidence
Fee events	2 of 3 maintenance fees paid	In force	High confidence
Computed term end	The steps above, in order	Jul 10, 2027	High confidence

This family

US 7,530,968	Term ended Jun 2024	Jun 2024
US 8,070,726	Term ended Jun 2024	Jun 2024
US 9,072,828	this patent Jul 2027	Jul 2027
US 9,125,983	Term ended Oct 2025	Oct 2025
US 9,511,187	Term ended Apr 2024	Apr 2024
US 10,525,194	Term ended Apr 2024	Apr 2024
US 11,642,456	Term ended Nov 2024	Nov 2024

The applications whose file history this site holds. The family may have others.

Assignments

Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.

Recorded	Assignor	Assignee	Conveyance
Sep 30, 2009 Reel 23308, frame 701	Gonnelli, Robert R.; McAllister, Devin V.; Levesque, Steven F.	Biovalve Technologies, Inc.	Assignment of Assignor's Interest
Sep 30, 2009 Reel 23308, frame 715	Biovalve Technologies, Inc.	Valeritas LLC	Assignment of Assignor's Interest
Sep 30, 2009 Reel 23308, frame 834	Valeritas LLC	Valeritas, Inc.	Change of Name
May 28, 2013 Reel 30497, frame 800	Valeritas, Inc.	Capital Royalty Partners II L.P.; Capital Royalty Partners II - Parallel Fund "a" L.P.; Parallel Investment Opportunities Partners II L.P.	Short-Form Patent Security Agreement
May 28, 2013 reel/frame not recorded	Valeritas, Inc.	Capital Royalty Partners II L.P.	Short-Form Patent Security Agreement
May 28, 2013 reel/frame not recorded	Valeritas, Inc.	Capital Royalty Partners II - Parallel Fund "a" L.P.	Short-Form Patent Security Agreement
May 28, 2013 reel/frame not recorded	Valeritas, Inc.	Parallel Investment Opportunities Partners II L.P.	Short-Form Patent Security Agreement
Jun 6, 2020 Reel 52859, frame 390	Valeritas, Inc.	Zealand Pharma A/S	Assignment of Assignor's Interest
Dec 27, 2021 Reel 58593, frame 261	Zealand Pharma A/S	Zoolander S.A. LLC	Patent Security Agreement
Aug 24, 2022 Reel 60887, frame 685	Zoolander S.A. LLC	Zealand Pharma A/S	Release of Security Interest
Sep 2, 2022 Reel 60984, frame 295	Zealand Pharma A/S	MannKind Corporation	Assignment of Assignor's Interest
May 17, 2023 Reel 63672, frame 342	Zoolander S.A. LLC	Zealand Pharma A/S	Release of Security Interest
Aug 12, 2025 Reel 72444, frame 525	MannKind Corporation	Wilmington Trust, National Association, as Collateral Agent	Patent Security Agreement
Aug 18, 2025 Reel 72509, frame 386	Capital Royalty Partners II L.P.; Capital Royalty Partners II - Parallel Fund "a" L.P.; Parallel Investment Opportunities Partners II L.P.	Zealand Pharma A/S	Sale Order / Release of Security Interest

Sources

Google Patents · The patent document at USPTO · Assignment records at USPTO

USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup

Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

What's changing

Jul 2027

Term ends Jul 10, 2027. Maintenance fees still fall due before then

Note

The 1173 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us

Citations

later US patents cite this one

That is below the median of utility patents granted in 2015 in our data, the only group it is compared against. How we rank

Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built

Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.

In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.

Hydraulically Actuated Pump for Long Duration Medicament Administration