The Patent Finder
US

High Efficiency Lighting Device Including One or More Solid State Light Emitters, and Method of Lighting

US 9,441,793 In force
OverviewFamilyAssignmentsSources & methods

Also listed on Ideal Industries Lighting LLC, an earlier holder on the record. The recorded assignments below show how it moved.

Term ends Dec 4, 2026 · Low confidence

Filed Jun 1, 2009 as application 12/475,850 · Granted Sep 13, 2016
Base term plus 283 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
20 years from filing
2007 2027
Clock starts
Nov 30, 2007
Term ends
Dec 4, 2026
Granted
Sep 13, 2016
base term after the term ends 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
283
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 7,213,940, US 7,828,460, US 8,513,875.
2 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
15
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 283 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 2 of 2 maintenance fees are paid so far. Confidence: Low. 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 30, 2007, when the earliest non-provisional application in its chain was filed (this one was filed Jun 1, 2009); a parent in its chain could not be resolved (the next row)Nov 30, 2027High confidence
Continuity chainA parent in the chain could not be resolveddated from this application's own claimMedium confidence
Patent term adjustment+283 days, USPTO patent term adjustment recordSep 8, 2028High confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 7,213,940, US 7,828,460, US 8,513,875)capped to Dec 4, 2026High confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 2 maintenance fees paidIn forceHigh confidence
Further caveats on recordThe record names parents not resolved: PCTUS2007086027Low confidence overallLow confidence
Computed term endThe steps above, in orderDec 4, 2026Low confidence

This family

US 7,213,940In force
Dec 2026
Dec 2026
Application PCT/US2007/009462PCT application
no patent term
no patent term
US 8,513,875In force
Feb 2031
Feb 2031
Application PCT/US2007/086027PCT application
no patent term
no patent term
US 9,084,328In force
Dec 2026
Dec 2026
US 9,441,793this patent
Dec 2026
Dec 2026
US 8,998,444In force
Jul 2030
Jul 2030
US 7,821,194In force
Apr 2027
Apr 2027
8 of 15 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.
RecordedAssignorAssigneeConveyance
Aug 11, 2009
Reel 23078, frame 61
Van De Ven, Antony Paul; Negley, Gerald H.Cree Led Lighting Solutions, Inc.Assignment of Assignor's Interest
Oct 14, 2010
Reel 25137, frame 15
Cree Led Lighting Solutions, Inc.Cree, Inc.Merger
Aug 1, 2019
Reel 49927, frame 473
Cree, Inc.Ideal Industries Lighting LLCAssignment of Assignor's Interest
Sep 13, 2023
Reel 64897, frame 413
Ideal Industries Lighting LLCFGI Worldwide LLCSecurity Interest
May 16, 2026
Reel 76279, frame 668
Clna Holdings, LLC; Cree Lighting USA LLC; Cree Lighting Canada Corp.; E-Conolight LLCLumen Acquisition Holdings, LLCAssignment of Assignor's Interest
May 22, 2026
Reel 75624, frame 358
Lumen Acquisition Holdings, LLCLed-IP Management, LLCAssignment 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.

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