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US

Hydrogel Wound Dressing for Use with Suction

US 8,992,509 In force
OverviewFamilyAssignmentsSources & methods

Term ends Dec 11, 2030 · High confidence

Filed May 4, 2012 as application 13/377,071 · Granted Mar 31, 2015
Base term plus 184 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2010 2030
Clock starts
Jun 10, 2010
Term ends
Dec 11, 2030
Granted
Mar 31, 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
184
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.
4
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 184 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.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts Jun 10, 2010, when application PCT/GB2010/001143, the earliest non-provisional in its chain, was filed (this one was filed May 4, 2012)Jun 10, 2030High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+184 days, USPTO patent term adjustment recordDec 11, 2030High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderDec 11, 2030High confidence

This family

US 8,992,509this patent
Dec 2030
Dec 2030
US 9,839,559Lapsed on the fee record
Dec 2025
Dec 2025
US 10,874,556Lapsed on the fee record
Dec 2024
Dec 2024
3 of 4 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
May 10, 2012
Reel 28185, frame 823
Lowing, Paul HowardSystagenix Wound Management (US), Inc.Assignment of Assignor's Interest
Oct 29, 2013
Reel 31508, frame 11
Systagenix Wound Management (US), Inc.Bank of America, N.A., as Collateral AgentSecurity Agreement
Feb 11, 2015
Reel 34954, frame 870
Systagenix Wound Management (US), Inc.; KCI USA, Inc.KCI USA, Inc.Merger and Change of Name
May 11, 2015
Reel 35645, frame 178
Systagenix Wound Management (Us),inc.; KCI USA, Inc.KCI USA, Inc.Merger and Change of Name
Feb 17, 2016
Reel 37845, frame 497
Kinetic Concepts, Inc.; KCI USA, Inc.; Acelity L.P. Inc.; Chiron Holdings, Inc.; Chiron Topco, Inc.; KCI Animal Health, LLC; KCI Holding Company, Inc.; KCI Homecare, Inc.; KCI Imports, Inc.; KCI International, Inc.; KCI Licensing, Inc.; KCI Properties Limited; Kci Real Holdings, L.l.c.; KCI Real Property Limited; KCI USA Real Holdings, L.L.C.; Lifecell Corporation; Technimotion, LLCWilmington Trust, National AssociationSecurity Interest
Sep 21, 2016
Reel 40098, frame 268
KCI USA, Inc.; Lifecell Corporation; KCI Licensing, Inc.Wilmington Trust, National Association, as Collateral AgentSecond Lien Security Agreement
Oct 7, 2016
Reel 40291, frame 237
KCI USA, Inc.; Lifecell Corporation; KCI Licensing, Inc.Wilmington Trust, National Association, as Collateral AgentLimited Third Lien Intellectual Property Security Agreement
Feb 6, 2017
Reel 41395, frame 44
Bank of America, N.A., as Collateral AgentKCI Licensing, Inc., as Grantor; Technimotion, LLC, a Delaware Limited Liability Company, as Grantor; Systagenix Wound Management (US), Inc., a Delaware Corporation, as GrantorRelease of Security Interest in Intellectual Property
Feb 6, 2017
reel/frame not recorded
Bank of America, N.A., as Collateral AgentKCI Licensing, Inc., as GrantorRelease of Security Interest in Intellectual Property
Feb 6, 2017
reel/frame not recorded
Bank of America, N.A., as Collateral AgentTechnimotion, LLC, a Delaware Limited Liability Company, as GrantorRelease of Security Interest in Intellectual Property
Feb 6, 2017
reel/frame not recorded
Bank of America, N.A., as Collateral AgentSystagenix Wound Management (US), Inc., a Delaware Corporation, as GrantorRelease of Security Interest in Intellectual Property
Feb 7, 2017
Reel 41650, frame 13
KCI USA, Inc., as GrantorBank of America, N.A., as Collateral AgentSecurity Agreement
Feb 8, 2017
Reel 41666, frame 320
Wilmington TrustKCI USA, Inc.Release of Security Interest Reel/Frame 040098/0268
Oct 11, 2019
Reel 50710, frame 955
Bank Of America, N.a.KCI USA, Inc.Release of Security Interest
Nov 6, 2019
Reel 50945, frame 278
Wilmington Trust, National AssociationKinetic Concepts, Inc.; KCI USA, Inc.; Acelity L.P. Inc.; Chiron Holdings, Inc.; Chiron Topco, Inc.; KCI Animal Health, LLC; KCI Holding Company, Inc.; KCI Homecare, Inc.; KCI Imports, Inc.; KCI International, Inc.; KCI Licensing, Inc.; KCI Properties Limited; Kci Real Holdings, L.l.c.; KCI Real Property Limited; KCI USA Real Holdings, L.L.C.; Technimotion, LLCRelease of Security Interest in Patents
Nov 6, 2019
reel/frame not recorded
Wilmington Trust, National AssociationKinetic Concepts, Inc.Release of Security Interest in Patents
Nov 6, 2019
reel/frame not recorded
Wilmington Trust, National AssociationKCI USA, Inc.Release of Security Interest in Patents
Nov 6, 2019
reel/frame not recorded
Wilmington Trust, National AssociationAcelity L.P. Inc.Release of Security Interest in Patents
Nov 6, 2019
reel/frame not recorded
Wilmington Trust, National AssociationChiron Holdings, Inc.Release of Security Interest in Patents
Nov 6, 2019
reel/frame not recorded
Wilmington Trust, National AssociationChiron Topco, Inc.Release of Security Interest in Patents
Nov 6, 2019
reel/frame not recorded
Wilmington Trust, National AssociationKCI Animal Health, LLCRelease of Security Interest in Patents
Nov 6, 2019
reel/frame not recorded
Wilmington Trust, National AssociationKCI Holding Company, Inc.Release of Security Interest in Patents
Nov 6, 2019
reel/frame not recorded
Wilmington Trust, National AssociationKCI Homecare, Inc.Release of Security Interest in Patents
Nov 6, 2019
reel/frame not recorded
Wilmington Trust, National AssociationKCI Imports, Inc.Release of Security Interest in Patents
Nov 6, 2019
reel/frame not recorded
Wilmington Trust, National AssociationKCI International, Inc.Release of Security Interest in Patents
Nov 6, 2019
reel/frame not recorded
Wilmington Trust, National AssociationKCI Licensing, Inc.Release of Security Interest in Patents
Nov 6, 2019
reel/frame not recorded
Wilmington Trust, National AssociationKCI Properties LimitedRelease of Security Interest in Patents
Nov 6, 2019
reel/frame not recorded
Wilmington Trust, National AssociationKci Real Holdings, L.l.c.Release of Security Interest in Patents
Nov 6, 2019
reel/frame not recorded
Wilmington Trust, National AssociationKCI Real Property LimitedRelease of Security Interest in Patents
Nov 6, 2019
reel/frame not recorded
Wilmington Trust, National AssociationKCI USA Real Holdings, L.L.C.Release of Security Interest in Patents
Nov 6, 2019
reel/frame not recorded
Wilmington Trust, National AssociationTechnimotion, LLCRelease of Security Interest in Patents
Nov 7, 2019
Reel 50966, frame 547
Wilmington Trust, National AssociationKCI USA, Inc.; KCI Licensing, Inc.Release of Security Interest in Patents
Nov 7, 2019
reel/frame not recorded
Wilmington Trust, National AssociationKCI USA, Inc.Release of Security Interest in Patents
Nov 7, 2019
reel/frame not recorded
Wilmington Trust, National AssociationKCI Licensing, Inc.Release 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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