Term ends no later than Dec 26, 2034 · Medium confidence

Computed 20-year base term

In force on USPTO's status record and by its fee record. A terminal disclaimer on file may shorten this term, possibly to a date already past; its reference document is unresolved, so the date above is an upper bound and no earlier date is guessed.

Held by Solus Advanced Materials Co., Ltd.

Filed Sep 27, 2022 as application 17/953,510 · Granted Oct 14, 2025

Base term, 20 years from filing

Today

20 years from filing

Ends no later than Dec 26, 2034

2014 2034

Clock starts
Dec 26, 2014

Ends no later than
Dec 26, 2034

Granted
Oct 14, 2025

base term 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.

Unresolved

Terminal disclaimer

On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.

0 of 2

Maintenance fees paid

Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.

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 is on file with no resolved reference, so no cap is applied and none is guessed. 0 of 2 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.

Step	Input	Date after this step	Confidence
Base term, 20 years from filing	Clock starts Dec 26, 2014, when application PCT/KR2014/012888, the earliest non-provisional in its chain, was filed (this one was filed Sep 27, 2022)	Dec 26, 2034	High confidence
Continuity chain	Every parent in the chain resolved	no change	High confidence
Patent term adjustment	None on file	no change	High confidence
Terminal disclaimer cap	Disclaimer on file (approved), reference document not resolved	no cap applied, and none guessed	Medium confidence
Patent term extension	None on file	no change	High confidence
Fee events	0 of 2 maintenance fees paid	In force	High confidence
Computed term end	The steps above, in order	no later than Dec 26, 2034	Medium confidence

This family

US 10,573,822	In force Nov 2034	Nov 2034
US 11,588,109	In force Mar 2035	Mar 2035
Application 17/589,017	Pending not computed	not computed
US 12,441,935	this patent no later than Dec 2034	no later than Dec 2034
Application 18/741,291	Pending not computed	not computed

5 of 6 applications in this family shown, earliest filings first. The applications whose file history this site holds. The family may have others.

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.

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

What's changing

Dec 2034

Term ends no later than Dec 26, 2034. Maintenance fees still fall due before then

Note

A terminal disclaimer is on file and its reference is not resolved. No cap is applied and none is guessed

Open question

A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Dec 26, 2034. We will not guess the cap.

Citations

later US patents cite this one

Fewer than half of the utility patents granted in 2025 in our data have been cited yet, so we show the count and do not rank on it. How we rank

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

This computed term ends no later than the date shown; an unresolved terminal disclaimer may end it earlier. Related patents and pending applications may cover overlapping subject matter.

In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.

Organic Electroluminescent Device