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US

Client Device Identification Through Cache Manipulation

US 8,924,529 In force
OverviewFamilyAssignmentsSources & methods

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

Term ends May 19, 2033 · High confidence

Held by CA, Inc.
Filed Jan 25, 2011 as application 13/013,046 · Granted Dec 30, 2014
Base term plus 845 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2011 2033
Clock starts
Jan 25, 2011
Term ends
May 19, 2033
Granted
Dec 30, 2014
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
845
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.
2
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 845 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 Jan 25, 2011, when this application, 13/013,046, was filedJan 25, 2031High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+845 days, USPTO patent term adjustment recordMay 19, 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 orderMay 19, 2033High confidence

This family

US 8,924,529this patent
May 2033
May 2033
Application PCT/US2011/022521PCT application
no patent term
no patent term
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
Jan 25, 2011
Reel 25692, frame 828
Reno, James D.Arcot Systems, Inc.Assignment of Assignor's Interest
Jun 23, 2011
Reel 26488, frame 240
Arcot Systems, Inc.Computer Associates Think, Inc.Assignment of Assignor's Interest
Sep 10, 2013
Reel 31170, frame 894
Computer Associates Think, Inc.CA, Inc.Merger

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 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited