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US

Recycling All Solid-State Batteries (ASSBs) and Anode Recovery

US 12,620,643 In force
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Jun 13, 2025 (Alter Domus (US) LLC).

Term ends Dec 16, 2044 · High confidence

Filed Jun 27, 2022 as application 17/849,992 · Granted May 5, 2026
Base term plus 903 days of patent term adjustment (USPTO delay)
Today
20 years from filing
2022 2044
Clock starts
Jun 27, 2022
Term ends
Dec 16, 2044
Granted
May 5, 2026
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
903
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.
3
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 903 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 Jun 27, 2022, when this application, 17/849,992, was filedJun 27, 2042High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustment+903 days, USPTO patent term adjustment recordDec 16, 2044High 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 orderDec 16, 2044High confidence

This family

Application 17/519,914Pending
not computed
not computed
US 12,620,643this patent
Dec 2044
Dec 2044
US 12,071,677In force
Aug 2042
Aug 2042
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 16, 2023
Reel 62714, frame 933
Gratz, Eric; Wang, YanAscend Elements, Inc.Assignment of Assignor's Interest
May 16, 2025
Reel 71147, frame 634
Ascend Elements, Inc.Avenue Capital Management II, L.P.Security Interest
Jun 13, 2025
Reel 71564, frame 618
Ascend Elements, Inc.Alter Domus (US) LLCIntellectual Property Security Agreement
Dec 12, 2025
Reel 73935, frame 873
Avenue Capital Management II, L.P.Ascend Elements, Inc.Termination and Release of Intellectual Property Security 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.

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