The Patent Finder
US

Converter Output Stage with Bias Voltage Generator

US 11,664,730 In force
OverviewFamilyAssignmentsSources & methods

Term ends Feb 23, 2036 · Medium confidence

Why Medium: A parent in the chain could not be resolved.

Filed Oct 22, 2021 as application 17/452,037 · Granted May 30, 2023
Base term, 20 years from filing
Today
20 years from filing
2016 2036
Clock starts
Feb 23, 2016
Term ends
Feb 23, 2036
Granted
May 30, 2023
base term 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
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
1 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 is its 20-year base term, with no adjustment for prosecution delay. 1 of 3 maintenance fees is paid so far. Confidence: Medium. 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 Feb 23, 2016, when applications 15/051,419 and 15/051,661, the earliest non-provisional applications in its chain, were filed (this one was filed Oct 22, 2021); a parent in its chain could not be resolved (the next row)Feb 23, 2036High confidence
Continuity chainA parent in the chain could not be resolveddated from this application's own claimMedium confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events1 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderFeb 23, 2036Medium confidence

This family

US 10,389,240In force
Feb 2036
Feb 2036
US 9,843,258In force
Feb 2036
Feb 2036
US 11,159,086In force
Feb 2036
Feb 2036
US 11,664,730this patent
Feb 2036
Feb 2036
US 11,962,242In force
no later than Feb 2036
no later than Feb 2036
US 12,283,889In force
Feb 2036
Feb 2036
Application 19/169,969Pending
not computed
not computed
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
Oct 22, 2021
Reel 57883, frame 950
Phillips, Timothy AlanEmpower Semiconductor, Inc.Assignment 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.

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited