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Heterodimeric Antibody Fc-Containing Proteins and Methods for Production Thereof

US 11,866,514 In force
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Dec 15, 2025 (Morgan Stanley Senior Funding, Inc.).

Term ends Dec 14, 2033 · Medium confidence

Why Medium: A parent in the chain could not be resolved.

Held by Genmab A/S
Filed Jan 30, 2020 as application 16/777,053 · Granted Jan 9, 2024
Base term plus 969 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2011 2033
Clock starts
Apr 20, 2011
Term ends
Dec 14, 2033
Granted
Jan 9, 2024
base term patent term adjustment Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
969
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
0 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
6
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 969 days past its 20-year base term on prosecution delay. 0 of 2 maintenance fees are paid so far. Confidence: Medium. 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.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts Apr 20, 2011, when application PCT/EP2011/056388, the earliest non-provisional in its chain, was filed (this one was filed Jan 30, 2020); a parent in its chain could not be resolved (the next row)Apr 20, 2031High confidence
Continuity chainA parent in the chain could not be resolveddated from this application's own claimMedium confidence
Patent term adjustment+969 days, USPTO patent term adjustment recordDec 14, 2033High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events0 of 2 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderDec 14, 2033Medium confidence

This family

US 9,150,663In force
Apr 2031
Apr 2031
Application 14/830,336Abandoned
not computed
not computed
US 10,597,464In force
Apr 2031
Apr 2031
US 11,866,514this patent
Dec 2033
Dec 2033
Application 18/507,869Pending
not computed
not computed
5 of 6 applications in this family shown, earliest filings first. 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.
RecordedAssignorAssigneeConveyance
Feb 3, 2020
Reel 51701, frame 405
Labrijn, Aran Frank; Meesters, Joyce I.; Van Den Bremer, Ewald T. J.; Neijssen, Joost J.; Van Berkel, Patrick; De Goeij, Bart; Vink, Tom; Van De Winkel, Jan; Schuurman, Janine; Parren, PaulGenmab A/SAssignment of Assignor's Interest
Dec 15, 2025
Reel 73933, frame 597
Genmab A/S; Genmab B.V.; Genmab Holding B.V.Morgan Stanley Senior Funding, Inc.Security Interest
Dec 15, 2025
Reel 73949, frame 722
Genmab A/S; Genmab B.V.; Genmab Holding B.V.Wilmington Trust, National AssociationNotice of Grant of Security Interest in Patents

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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