The Patent Finder
US

Light-Emitting Device And Method For Providing Phototherapy to The Brain

US 12,303,709 Term ended
OverviewSources & methods

Term ended Jul 15, 2026 · High confidence

Held by Pthera LLC
Filed Nov 22, 2021 as application 17/456,090 · Granted May 20, 2025
Base term plus 358 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
20 years from filing
Term ended Jul 15, 2026
2006 2026
Clock starts
Mar 21, 2006
Term ended
Jul 15, 2026
Granted
May 20, 2025
base term patent term adjustment after the term ends 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
358
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 11,179,572.
None due
Maintenance fees
This term ends before the first maintenance fee's grace period does, 4 years from grant, so no fee can end it early.

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.
Step Input Date after this step Confidence
Base term, 20 years from filingClock starts Mar 21, 2006, when the earliest non-provisional application in its chain was filed (this one was filed Nov 22, 2021)Mar 21, 2026High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+358 days, USPTO patent term adjustment recordMar 14, 2027High confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 11,179,572)capped to Jul 15, 2026High confidence
Patent term extensionNone on fileno changeHigh confidence
Fee eventsNo maintenance fee can end the term earlyterm endedHigh confidence
Computed term endThe steps above, in orderJul 15, 2026High confidence

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.

Not on this page: the patent's family, its recorded assignments and its citation count. USPTO's assignment records, linked above, list every recorded assignment.

Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built

Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.

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