Also listed on Therakos Development Limited, an earlier holder on the record. The recorded assignments below show how it moved.

Term ended Nov 2, 2026 · High confidence

Computed 20-year base term

Held by Therakos Holdings USA, LLC

Filed Oct 19, 2018 as application 16/165,679 · Granted Sep 21, 2021

Base term, 20 years from filing

Today

20 years from filing

Term ended Nov 2, 2026

2006 2026

Clock starts
Nov 2, 2006

Term ended
Nov 2, 2026

Granted
Sep 21, 2021

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

None

Term adjustment

No prosecution delay on this record.

None

Terminal disclaimer

No disclaimer on this record.

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.

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 is its 20-year base term, with no adjustment for prosecution delay. 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 Nov 2, 2006, when application PCT/US2006/042581, the earliest non-provisional in its chain, was filed (this one was filed Oct 19, 2018)	Nov 2, 2026	High confidence
Continuity chain	Every parent in the chain resolved	no change	High confidence
Patent term adjustment	None on file	no change	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	1 of 1 maintenance fees paid	term ended	High confidence
Computed term end	The steps above, in order	Nov 2, 2026	High confidence

This family

Application PCT/US2006/042581	PCT application no patent term	no patent term
US 9,169,461	In force Aug 2030	Aug 2030
US 10,138,464	In force May 2027	May 2027
US 11,124,767	this patent Nov 2026	Nov 2026
Application 17/458,206	Abandoned not computed	not computed

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

Assignments

The 40 most recent of 97 recorded documents are shown; the 57 earliest are not. 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
Nov 16, 2023 reel/frame not recorded	Deutsche Bank AG New York Branch, as Collateral Agent	Mallinckrodt US Holdings LLC	Release of Patent Security Interests Recorded at Reel 049822, Frame 0674
Nov 16, 2023 reel/frame not recorded	Deutsche Bank AG New York Branch, as Collateral Agent	Imc Exploration Company	Release of Patent Security Interests Recorded at Reel 049822, Frame 0674
Nov 16, 2023 reel/frame not recorded	Deutsche Bank AG New York Branch, as Collateral Agent	Meh, Inc.	Release of Patent Security Interests Recorded at Reel 049822, Frame 0674
Nov 16, 2023 reel/frame not recorded	Deutsche Bank AG New York Branch, as Collateral Agent	Mallinckrodt Hospital Products IP Unlimited Company (F/K/A Mallinckrodt Hospital Products IP Limited)	Release of Patent Security Interests Recorded at Reel 049822, Frame 0674
Nov 16, 2023 reel/frame not recorded	Deutsche Bank AG New York Branch, as Collateral Agent	Mallinckrodt Ard IP Unlimited Company (F/K/A Mallinckrodt Ard IP Limited)	Release of Patent Security Interests Recorded at Reel 049822, Frame 0674
Nov 16, 2023 reel/frame not recorded	Deutsche Bank AG New York Branch, as Collateral Agent	Ocera Therapeutics LLC (F/K/A Ocera Therapeutics, Inc.)	Release of Patent Security Interests Recorded at Reel 049822, Frame 0674
Nov 16, 2023 reel/frame not recorded	Deutsche Bank AG New York Branch, as Collateral Agent	Specgx LLC	Release of Patent Security Interests Recorded at Reel 049822, Frame 0674
Nov 16, 2023 reel/frame not recorded	Deutsche Bank AG New York Branch, as Collateral Agent	Stratatech Corporation	Release of Patent Security Interests Recorded at Reel 049822, Frame 0674
Nov 16, 2023 reel/frame not recorded	Deutsche Bank AG New York Branch, as Collateral Agent	Sucampo Pharma Americas LLC	Release of Patent Security Interests Recorded at Reel 049822, Frame 0674
Nov 16, 2023 reel/frame not recorded	Deutsche Bank AG New York Branch, as Collateral Agent	Vtesse LLC (F/K/A Vtesse Inc.)	Release of Patent Security Interests Recorded at Reel 049822, Frame 0674
Nov 16, 2023 reel/frame not recorded	Deutsche Bank AG New York Branch, as Collateral Agent	Mallinckrodt Pharmaceuticals Ireland Limited	Release of Patent Security Interests Recorded at Reel 049822, Frame 0674
Nov 16, 2023 reel/frame not recorded	Deutsche Bank AG New York Branch, as Collateral Agent	Mallinckrodt Pharma IP Trading Unlimited Company (F/K/A Mallinckrodt Pharma IP Trading D.A.C.)	Release of Patent Security Interests Recorded at Reel 049822, Frame 0674
Nov 16, 2023 reel/frame not recorded	Deutsche Bank AG New York Branch, as Collateral Agent	Infacare Pharmaceutical Corporation	Release of Patent Security Interests Recorded at Reel 049822, Frame 0674
Nov 16, 2023 reel/frame not recorded	Deutsche Bank AG New York Branch, as Collateral Agent	ST Shared Services LLC	Release of Patent Security Interests Recorded at Reel 049822, Frame 0674
Nov 16, 2023 reel/frame not recorded	Deutsche Bank AG New York Branch, as Collateral Agent	Therakos, Inc.	Release of Patent Security Interests Recorded at Reel 049822, Frame 0674
Nov 16, 2023 reel/frame not recorded	Deutsche Bank AG New York Branch, as Collateral Agent	Ikaria Therapeutics LLC	Release of Patent Security Interests Recorded at Reel 049822, Frame 0674
Nov 16, 2023 reel/frame not recorded	Deutsche Bank AG New York Branch, as Collateral Agent	Ino Therapeutics LLC	Release of Patent Security Interests Recorded at Reel 049822, Frame 0674
Nov 4, 2024 Reel 69127, frame 749	Mallinckrodt Hospital Products IP Unlimited Company	Mallinckrodt Pharmaceuticals Ireland Limited	Assignment of Assignor's Interest
Nov 4, 2024 Reel 69301, frame 664	Mallinckrodt Hospital Products IP Limited	Mallinckrodt Hospital Products IP Unlimited Company	Change of Name
Dec 3, 2024 Reel 69476, frame 103	Acquiom Agency Services, LLC, as Collateral Agent	Mallinckrodt Pharma IP Trading Limited; Stratatech Corporation; Mallinckrodt Pharmaceuticals Ireland Limited	Release of Security Interests
Dec 3, 2024 Reel 69476, frame 380	Solaris Ipco Limited	Nomura Corporation Funding Americas, LLC, as Administrative Agent and Collateral Agent	Patent Security Agreement
Dec 3, 2024 reel/frame not recorded	Acquiom Agency Services, LLC, as Collateral Agent	Mallinckrodt Pharma IP Trading Limited	Release of Security Interests
Dec 3, 2024 reel/frame not recorded	Acquiom Agency Services, LLC, as Collateral Agent	Stratatech Corporation	Release of Security Interests
Dec 3, 2024 reel/frame not recorded	Acquiom Agency Services, LLC, as Collateral Agent	Mallinckrodt Pharmaceuticals Ireland Limited	Release of Security Interests
Mar 25, 2025 Reel 70622, frame 729	Mallinckrodt Pharmaceuticals Ireland Limited	Therakos Development Limited	Assignment of Assignor's Interest
Aug 14, 2025 Reel 72324, frame 740	Acquiom Agency Services LLC	Mallinckrodt Enterprises LLC; Mallinckrodt LLC; Mallinckrodt Pharma IP Trading Unlimited Company; Mallinckrodt Pharmaceuticals Ireland Limited; Ocera Therapeutics LLC; Specgx LLC; Stratatech Corporation; Sucampo Pharma Americas LLC; Vtesse LLC	Release of Security Interest
Aug 14, 2025 reel/frame not recorded	Acquiom Agency Services LLC	Mallinckrodt Enterprises LLC	Release of Security Interest
Aug 14, 2025 reel/frame not recorded	Acquiom Agency Services LLC	Mallinckrodt LLC	Release of Security Interest
Aug 14, 2025 reel/frame not recorded	Acquiom Agency Services LLC	Mallinckrodt Pharma IP Trading Unlimited Company	Release of Security Interest
Aug 14, 2025 reel/frame not recorded	Acquiom Agency Services LLC	Mallinckrodt Pharmaceuticals Ireland Limited	Release of Security Interest
Aug 14, 2025 reel/frame not recorded	Acquiom Agency Services LLC	Ocera Therapeutics LLC	Release of Security Interest
Aug 14, 2025 reel/frame not recorded	Acquiom Agency Services LLC	Specgx LLC	Release of Security Interest
Aug 14, 2025 reel/frame not recorded	Acquiom Agency Services LLC	Stratatech Corporation	Release of Security Interest
Aug 14, 2025 reel/frame not recorded	Acquiom Agency Services LLC	Sucampo Pharma Americas LLC	Release of Security Interest
Aug 14, 2025 reel/frame not recorded	Acquiom Agency Services LLC	Vtesse LLC	Release of Security Interest
Mar 17, 2026 Reel 75101, frame 970	Nomura Corporate Funding Americas, LLC, as Administrative Agent and Collateral Agent	Therakos Development Limited	Release of Patent Security Interest Recorded at Reel 69476, Frame 0380
Mar 17, 2026 Reel 75102, frame 334	Therakos Holdings USA, LLC	Nomura Corporate Funding Americas, LLC, as Administrative Agent and Collateral Agent	Patent Security Agreement
Mar 23, 2026 Reel 75227, frame 886	Therakos Development Limited	Therakos Holdings USA, LLC	Assignment of Assignor's Interest
Apr 10, 2026 Reel 75393, frame 921	Mallinckrodt Hospital Products IP Unlimited Company	Mallinckrodt Pharmaceuticals Ireland Limited Company	Assignment of Assignor's Interest
May 22, 2026 Reel 75713, frame 146	Therakos Development Limited	Therakos Holdings USA, LLC	Assignment of Assignor's 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.

Citations

later US patents cite this one

That is below the median of utility patents granted in 2021 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.

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