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Controlled Polarity Group III-Nitride Films and Methods of Preparing Such Films

US 8,734,965 Term ended
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Nov 13, 2014 (Intersouth Partners VI, L.P.).

Term ended Feb 3, 2026 · Medium confidence

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

Base term plus 66 days of patent term adjustment (USPTO delay)
Today
20 years from filing
Term ended Feb 3, 2026
2005 2026
Clock starts
Nov 29, 2005
Term ended
Feb 3, 2026
Granted
May 27, 2014
base term patent term adjustment after the term ends 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
66
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.
3
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 66 days past its 20-year base term on prosecution delay. All three maintenance fees were paid, so no fee lapse ended it. 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 Nov 29, 2005, when application PCT/US2005/043073, the earliest non-provisional in its chain, was filed (this one was filed Sep 30, 2010); a parent in its chain could not be resolved (the next row)Nov 29, 2025High confidence
Continuity chainA parent in the chain could not be resolveddated from this application's own claimMedium confidence
Patent term adjustment+66 days, USPTO patent term adjustment recordFeb 3, 2026High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidterm endedHigh confidence
Computed term endThe steps above, in orderFeb 3, 2026Medium confidence

This family

Application PCT/US2005/043073PCT application
no patent term
no patent term
US 7,815,970In force
Mar 2029
Mar 2029
US 8,734,965this patent
Feb 2026
Feb 2026
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
Jul 21, 2011
Reel 26627, frame 964
Hexatech, Inc.Intersouth Partners Vi, L.p.; H.I.G. Venture Partners II, L.P.; H.I.G. Ventures - Hexatech, Inc.; Sevin Rosen Fund IX L.P.; Sevin Rosen IX Affiliates Fund L.P.; Mcnc Enterprise Fund, L.p.Security Agreement
Jul 21, 2011
reel/frame not recorded
Hexatech, Inc.Intersouth Partners Vi, L.p.Security Agreement
Jul 21, 2011
reel/frame not recorded
Hexatech, Inc.H.I.G. Venture Partners II, L.P.Security Agreement
Jul 21, 2011
reel/frame not recorded
Hexatech, Inc.H.I.G. Ventures - Hexatech, Inc.Security Agreement
Jul 21, 2011
reel/frame not recorded
Hexatech, Inc.Sevin Rosen Fund IX L.P.Security Agreement
Jul 21, 2011
reel/frame not recorded
Hexatech, Inc.Sevin Rosen IX Affiliates Fund L.P.Security Agreement
Jul 21, 2011
reel/frame not recorded
Hexatech, Inc.Mcnc Enterprise Fund, L.p.Security Agreement
Oct 21, 2011
Reel 27096, frame 644
Hexatech, Inc.Silicon Valley BankSecurity Agreement
Aug 30, 2012
Reel 28885, frame 206
Hexatech, Inc.Intersouth Partners Vi, L.p.; H.I.G. Venture Partners II, L.P.; H.I.G. Ventures - Hexatech, LLC; Sevin Rosen Fund IX L.P.; Sevin Rosen IX Affiliates Fund L.P.; Mcnc Enterprise Fund, L.p.Security Agreement
Aug 30, 2012
reel/frame not recorded
Hexatech, Inc.Intersouth Partners Vi, L.p.Security Agreement
Aug 30, 2012
reel/frame not recorded
Hexatech, Inc.H.I.G. Venture Partners II, L.P.Security Agreement
Aug 30, 2012
reel/frame not recorded
Hexatech, Inc.H.I.G. Ventures - Hexatech, LLCSecurity Agreement
Aug 30, 2012
reel/frame not recorded
Hexatech, Inc.Sevin Rosen Fund IX L.P.Security Agreement
Aug 30, 2012
reel/frame not recorded
Hexatech, Inc.Sevin Rosen IX Affiliates Fund L.P.Security Agreement
Aug 30, 2012
reel/frame not recorded
Hexatech, Inc.Mcnc Enterprise Fund, L.p.Security Agreement
Nov 2, 2012
Reel 29231, frame 870
Hexatech, Inc.Idea Stimulus Fund, L.p.Security Agreement
Jan 30, 2014
Reel 32095, frame 701
Hexatech, Inc.Intersouth Partners Vi, L.p.; H.I.G. Venture Partners II, L.P.; H.I.G. Ventures-Hexatech, LLC; Sevin Rosen Fund IX L.P.; Sevin Rosen IX Affiliates Fund L.P.; Mcnc Enterprise Fund, L.p.Assignment of Assignor's Interest
Jan 30, 2014
reel/frame not recorded
Hexatech, Inc.Intersouth Partners Vi, L.p.Assignment of Assignor's Interest
Jan 30, 2014
reel/frame not recorded
Hexatech, Inc.H.I.G. Venture Partners II, L.P.Assignment of Assignor's Interest
Jan 30, 2014
reel/frame not recorded
Hexatech, Inc.H.I.G. Ventures-Hexatech, LLCAssignment of Assignor's Interest
Jan 30, 2014
reel/frame not recorded
Hexatech, Inc.Sevin Rosen Fund IX L.P.Assignment of Assignor's Interest
Jan 30, 2014
reel/frame not recorded
Hexatech, Inc.Sevin Rosen IX Affiliates Fund L.P.Assignment of Assignor's Interest
Jan 30, 2014
reel/frame not recorded
Hexatech, Inc.Mcnc Enterprise Fund, L.p.Assignment of Assignor's Interest
Nov 13, 2014
Reel 34161, frame 276
Hexatech, Inc.Intersouth Partners Vi, L.p.; H.I.G. Venture Partners II, L.P.; Mcnc Enterprise Fund, L.p.; Sevin Rosen Fund IX L.P.; Sevin Rosen IX Affiliates Fund L.P.Security Interest
Nov 13, 2014
reel/frame not recorded
Hexatech, Inc.Intersouth Partners Vi, L.p.Security Interest
Nov 13, 2014
reel/frame not recorded
Hexatech, Inc.H.I.G. Venture Partners II, L.P.Security Interest
Nov 13, 2014
reel/frame not recorded
Hexatech, Inc.Mcnc Enterprise Fund, L.p.Security Interest
Nov 13, 2014
reel/frame not recorded
Hexatech, Inc.Sevin Rosen Fund IX L.P.Security Interest
Nov 13, 2014
reel/frame not recorded
Hexatech, Inc.Sevin Rosen IX Affiliates Fund L.P.Security Interest
Mar 8, 2016
Reel 37919, frame 166
Silicon Valley BankHexatech, Inc.Release of Security Interest
Mar 10, 2016
Reel 38056, frame 437
Hexatech, Inc.Intersouth Partners Vi, L.p.; H.I.G. Venture Partners II, L.P.; H.I.G. Ventures-Hexatech, LLC; Sevin Rosen Fund IX L.P.; Sevin Rosen IX Affiliates Fund L.P.; Mcnc Enterprise Fund, L.p.Corrective Assignment to Correct the Conveyance Type Previously Recorded at Reel: 032095 Frame: 0701. Assignor(S) Hereby Confirms the Security Interest.
Mar 10, 2016
reel/frame not recorded
Hexatech, Inc.Intersouth Partners Vi, L.p.Corrective Assignment to Correct the Conveyance Type Previously Recorded at Reel: 032095 Frame: 0701. Assignor(S) Hereby Confirms the Security Interest.
Mar 10, 2016
reel/frame not recorded
Hexatech, Inc.H.I.G. Venture Partners II, L.P.Corrective Assignment to Correct the Conveyance Type Previously Recorded at Reel: 032095 Frame: 0701. Assignor(S) Hereby Confirms the Security Interest.
Mar 10, 2016
reel/frame not recorded
Hexatech, Inc.H.I.G. Ventures-Hexatech, LLCCorrective Assignment to Correct the Conveyance Type Previously Recorded at Reel: 032095 Frame: 0701. Assignor(S) Hereby Confirms the Security Interest.
Mar 10, 2016
reel/frame not recorded
Hexatech, Inc.Sevin Rosen Fund IX L.P.Corrective Assignment to Correct the Conveyance Type Previously Recorded at Reel: 032095 Frame: 0701. Assignor(S) Hereby Confirms the Security Interest.
Mar 10, 2016
reel/frame not recorded
Hexatech, Inc.Sevin Rosen IX Affiliates Fund L.P.Corrective Assignment to Correct the Conveyance Type Previously Recorded at Reel: 032095 Frame: 0701. Assignor(S) Hereby Confirms the Security Interest.
Mar 10, 2016
reel/frame not recorded
Hexatech, Inc.Mcnc Enterprise Fund, L.p.Corrective Assignment to Correct the Conveyance Type Previously Recorded at Reel: 032095 Frame: 0701. Assignor(S) Hereby Confirms the Security Interest.
Jul 31, 2025
Reel 72297, frame 175
North Carolina State University RaleighThe Government of the United States of America as Represented by the Secretary of the NavyGovernment Interest Agreement

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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