Term ended Apr 23, 2024 · High confidence
20-year base term ended Apr 23, 2024
Held by MannKind Corporation
Filed Oct 21, 2016 as application 15/299,678 · Granted Jan 7, 2020
Base term plus 414 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
Term ended Apr 23, 2024
2004
2026
Clock starts
Apr 23, 2004
Apr 23, 2004
Term ended
Apr 23, 2024
Apr 23, 2024
Granted
Jan 7, 2020
Jan 7, 2020
base term
after the term ends
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
414
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 9,511,187.
1 of 1
Maintenance fees paid
One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it paid.
7
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 414 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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 Oct 21, 2016) | Apr 23, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +414 days, USPTO patent term adjustment record | Jun 11, 2025 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 9,511,187) | capped to Apr 23, 2024 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 1 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | Apr 23, 2024 | 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 | In force 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 | this patent 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 |
|---|---|---|---|
| Oct 1, 2019 Reel 50585, frame 889 | Gonnelli, Robert R.; McAllister, Devin V.; Levesque, Steven F. | Biovalve Technologies, Inc. | Assignment of Assignor's Interest |
| Oct 1, 2019 Reel 50586, frame 62 | Biovalve Technologies, Inc. | Valeritas LLC | Assignment of Assignor's Interest |
| Oct 1, 2019 Reel 50595, frame 325 | Valeritas LLC | Valeritas, Inc. | Change of Name |
| 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 |
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.
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Alerts on its grants, lapses and transfers.
What's changing
Note
The 414 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 9,511,187.
Citations
1
later US patent cites this one
That is below the median of utility patents granted in 2020 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.