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US

Lighting Controller for Emulating Progression of Ambient Sunlight

US 11,585,515 In force
OverviewFamilyAssignmentsSources & methods

Term ends Aug 6, 2036 · High confidence

Held by Korrus, Inc.
Filed Apr 24, 2019 as application 16/393,518 · Granted Feb 21, 2023
Base term plus 191 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2016 2036
Clock starts
Jan 28, 2016
Term ends
Aug 6, 2036
Granted
Feb 21, 2023
base term patent term adjustment 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
191
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
0 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.
45
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 191 days past its 20-year base term on prosecution delay. 0 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 28, 2016, when application PCT/US2016/015435, the earliest non-provisional in its chain, was filed (this one was filed Apr 24, 2019)Jan 28, 2036High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+191 days, USPTO patent term adjustment recordAug 6, 2036High confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events0 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderAug 6, 2036High confidence

This family

Application PCT/US2016/015435PCT application
no patent term
no patent term
US 10,253,948In force
Mar 2038
Mar 2038
Application PCT/US2018/029380PCT application
no patent term
no patent term
US 10,701,775In force
Jan 2036
Jan 2036
Application 16/279,396Abandoned
not computed
not computed
US 11,585,515this patent
Aug 2036
Aug 2036
Application 16/401,346Abandoned
not computed
not computed
US 11,386,641In force
Oct 2038
Oct 2038
8 of 45 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
Feb 21, 2022
Reel 59239, frame 614
Ecosense Lighting Inc.Korrus, Inc.Nunc Pro Tunc Assignment

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