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Graphene-Enhanced Anode Particulates for Lithium Ion Batteries

US 9,558,860 In force
OverviewFamilyAssignmentsSources & methods

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

Term ends Sep 6, 2033 · High confidence

Filed Sep 10, 2010 as application 12/807,635 · Granted Jan 31, 2017
Base term plus 1092 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2010 2033
Clock starts
Sep 10, 2010
Term ends
Sep 6, 2033
Granted
Jan 31, 2017
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
1,092
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.
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 1092 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 Sep 10, 2010, when this application, 12/807,635, was filedSep 10, 2030High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+1092 days, USPTO patent term adjustment recordSep 6, 2033High 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 orderSep 6, 2033High confidence

This family

US 9,558,860this patent
Sep 2033
Sep 2033
US 10,559,811In force
Oct 2031
Oct 2031
US 11,631,838In force
Aug 2031
Aug 2031
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
Sep 5, 2013
Reel 31141, frame 120
Zhamu, Aruna; Shi, Jinjun; Chen, Guorong; Fang, Qing; Jang, Bor Z.Nanotek Instruments, Inc.Assignment of Assignor's Interest
Jun 3, 2014
Reel 33014, frame 77
Nanotek Instruments, Inc.Samsung Electronics Co., Ltd.Assignment of Assignor's Interest
Apr 13, 2016
Reel 38427, frame 183
Fang, QingNanotek Instruments, Inc.Assignment of Assignor's Interest
Apr 13, 2016
Reel 38427, frame 518
Chen, GuorongNanotek Instruments, Inc.Assignment of Assignor's Interest
Apr 13, 2016
Reel 38428, frame 742
Shi, JinjunNanotek Instruments, Inc.Assignment of Assignor's Interest
Apr 19, 2016
Reel 38463, frame 95
Zhamu, ArunaNanotek Instruments, Inc.Assignment of Assignor's Interest
Apr 19, 2016
Reel 38464, frame 403
Jang, Bor Z.Nanotek Instruments, Inc.Assignment of Assignor's Interest
Apr 20, 2016
Reel 38331, frame 237
Fang, QingNanotek Instruments, Inc.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.

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited