The Patent Finder
US

Method and Device for Encoding/Decoding Residual Block on Basis of Quantization Parameter

US 12,273,546 In force
OverviewFamilyAssignmentsSources & methods

Term ends Nov 8, 2038 · Medium confidence

Why Medium: The disclaimer's references carry disclaimers of their own not yet read (US 10,764,584), so the cap could be lower.

Filed Oct 27, 2023 as application 18/496,610 · Granted Apr 8, 2025
Base term, 20 years from filing · capped by a resolved terminal disclaimer
Today
20 years from filing
2019 2039
Clock starts
Jun 10, 2019
Term ends
Nov 8, 2038
Granted
Apr 8, 2025
base term 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
None
Term adjustment
No prosecution delay on this record.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 10,764,584.
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.
5
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. A terminal disclaimer resolved from the filed document caps it earlier. 0 of 3 maintenance fees are 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 Jun 10, 2019, when application PCT/KR2019/006961, the earliest non-provisional in its chain, was filed (this one was filed Oct 27, 2023)Jun 10, 2039High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capDisclaimer resolved from the filed document (refs US 10,764,584)capped to Nov 8, 2038Medium confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events0 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderNov 8, 2038Medium confidence

This family

US 11,284,099In force
Jun 2039
Jun 2039
US 11,838,527In force
Jun 2039
Jun 2039
US 12,273,546this patent
Nov 2038
Nov 2038
Application 19/079,434Pending
not computed
not computed
4 of 5 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
Nov 17, 2023
Reel 65626, frame 322
Sim, Dong Gyu; Park, Sea NaeKwangwoon University Industry-Academic Collaboration FoundationAssignment of Assignor's Interest
Nov 17, 2023
Reel 65606, frame 460
Kwangwoon University Industry-Academic Collaboration FoundationHanwha Techwin Co., Ltd.Assignment of Assignor's Interest
Nov 17, 2023
Reel 65626, frame 271
Hanwha Techwin Co., Ltd.Hanwha Vision Co., Ltd.Change of Name

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