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LED Current Control Circuits and Methods

US 7,683,553 In force
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Jan 9, 2013 (Bank of America, N.A.).

Term ends Jun 6, 2027 · High confidence

Filed May 1, 2007 as application 11/799,173 · Granted Mar 23, 2010
Base term plus 36 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2007 2027
Clock starts
May 1, 2007
Term ends
Jun 6, 2027
Granted
Mar 23, 2010
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
36
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.
7
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 36 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.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts May 1, 2007, when this application, 11/799,173, was filedMay 1, 2027High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+36 days, USPTO patent term adjustment recordJun 6, 2027High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events3 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderJun 6, 2027High confidence

This family

US 7,342,389Lapsed on the fee record
Mar 2020
Mar 2020
US 7,684,482In force
Nov 2028
Nov 2028
US 7,847,315In force
Oct 2028
Oct 2028
US 7,683,553this patent
Jun 2027
Jun 2027
US 8,111,846In force
May 2030
May 2030
US 7,579,910In force
Jan 2028
Jan 2028
US 7,932,536In force
Oct 2027
Oct 2027
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 1, 2007
Reel 19316, frame 237
Fong, Vincent Lok-cheungPacifictech Microelectronics, Inc.Assignment of Assignor's Interest
Nov 6, 2012
Reel 29246, frame 55
Pacifictech Microelectronic, Inc.Diodes IncorporatedAssignment of Assignor's Interest
Jan 9, 2013
Reel 29594, frame 472
Diodes Incorporated, As GrantorBank of America, N.A., as Administrative AgentSecurity 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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