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

Term ends Aug 19, 2029 · High confidence

Computed 20-year base term

Held by Solventum Intellectual Properties Company

Filed Apr 14, 2010 as application 12/760,406 · Granted Mar 6, 2012

Base term plus 183 days of patent term adjustment (USPTO delay)

Today

20 years from filing

Term ends Aug 19, 2029

2009 2029

Clock starts
Feb 17, 2009

Term ends
Aug 19, 2029

Granted
Mar 6, 2012

base term patent term adjustment fee events 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

183

Days of term adjustment

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

None

Terminal disclaimer

No disclaimer on this record.

3 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 183 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Feb 17, 2009, when application 12/372,661, the earliest non-provisional in its chain, was filed (this one was filed Apr 14, 2010)	Feb 17, 2029	High confidence
Continuity chain	Every parent in the chain resolved	no change	High confidence
Patent term adjustment	+183 days, USPTO patent term adjustment record	Aug 19, 2029	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	3 of 3 maintenance fees paid	In force	High confidence
Computed term end	The steps above, in order	Aug 19, 2029	High confidence

This family

US 8,177,764	In force Aug 2030	Aug 2030
US 8,128,607	this patent Aug 2029	Aug 2029
US 8,337,474	In force Dec 2029	Dec 2029
US 8,961,481	In force Oct 2031	Oct 2031
US 9,283,307	In force May 2032	May 2032
US 8,162,908	In force Feb 2029	Feb 2029
US 8,926,575	In force Dec 2029	Dec 2029
US 9,895,471	Lapsed on the fee record Feb 2026	Feb 2026

8 of 10 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.

Recorded	Assignor	Assignee	Conveyance
Feb 7, 2011 Reel 25751, frame 117	Hu, Dean; Pinto, Moshe; Fong, Kenton	Spiracur Inc.	Assignment of Assignor's Interest
Oct 30, 2014 Reel 34076, frame 87	Spiracur Inc., as Grantor	General Electric Capital Corporation, as Agent	Security Interest
Nov 14, 2015 Reel 37111, frame 836	General Electric Capital Corporation, as Retiring Agent	Healthcare Financial Solutions, LLC, as Successor Agent	Assignment of Intellectual Property Security Agreement
Dec 1, 2015 Reel 37179, frame 541	Healthcare Financial Solutions, LLC	Spiracur Inc.	Release of Security Interest
Dec 21, 2015 Reel 37355, frame 210	Spiracur Inc.	KCI Licensing, Inc.	Assignment of Assignor's Interest
Sep 21, 2016 Reel 40098, frame 268	KCI USA, Inc.; Lifecell Corporation; KCI Licensing, Inc.	Wilmington Trust, National Association, as Collateral Agent	Second Lien Security Agreement
Oct 7, 2016 Reel 40291, frame 237	KCI USA, Inc.; Lifecell Corporation; KCI Licensing, Inc.	Wilmington Trust, National Association, as Collateral Agent	Limited Third Lien Intellectual Property Security Agreement
Feb 8, 2017 Reel 41666, frame 320	Wilmington Trust	KCI USA, Inc.	Release of Security Interest Reel/Frame 040098/0268
Nov 7, 2019 Reel 50966, frame 547	Wilmington Trust, National Association	KCI USA, Inc.; KCI Licensing, Inc.	Release of Security Interest in Patents
Nov 7, 2019 reel/frame not recorded	Wilmington Trust, National Association	KCI USA, Inc.	Release of Security Interest in Patents
Nov 7, 2019 reel/frame not recorded	Wilmington Trust, National Association	KCI Licensing, Inc.	Release of Security Interest in Patents
Aug 28, 2023 Reel 64730, frame 636	KCI Licensing, Inc.	3M Innovative Properties Company	Assignment of Assignor's Interest
Feb 1, 2024 Reel 66436, frame 63	3M Innovative Properties Company	Solventum Intellectual Properties Company	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.

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

What's changing

Aug 2029

Term ends Aug 19, 2029. No further fees fall due before then

Note

The 183 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 top 25% of utility patents granted in 2012 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.

Devices and Methods for Treatment of Damaged Tissue