Term ends Dec 23, 2034 · Medium confidence
20-year base term ends Dec 23, 2034
Why Medium: The disclaimer's references carry disclaimers of their own not yet read (US 9,832,589), so the cap could be lower.
Filed Oct 21, 2017 as application 15/789,960 · Granted Dec 18, 2018
Base term, 20 years from filing
Today
2014
2034
Clock starts
Dec 23, 2014
Dec 23, 2014
Term ends
Dec 23, 2034
Dec 23, 2034
Granted
Dec 18, 2018
Dec 18, 2018
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.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 9,832,589, to Dec 23, 2034. The term already ends on or before that date, so the cap shortened nothing.
2 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. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 2 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.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Dec 23, 2014, when application PCT/KR2014/012758, the earliest non-provisional in its chain, was filed (this one was filed Oct 21, 2017) | Dec 23, 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 resolved from the filed document (refs US 9,832,589) | resolves to Dec 23, 2034, no earlier than this term, so no change | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Dec 23, 2034 | Medium confidence |
This family
| US 9,832,589 | In force no later than Dec 2034 | no later than Dec 2034 |
| US 10,158,965 | this patent Dec 2034 | Dec 2034 |
| US 10,433,099 | In force Dec 2034 | Dec 2034 |
| US 10,701,511 | In force Dec 2034 | Dec 2034 |
| US 11,109,180 | In force Dec 2034 | Dec 2034 |
| US 11,689,879 | In force Dec 2034 | Dec 2034 |
6 of 7 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.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Jan 10, 2018 Reel 44590, frame 599 | Lee, Taegyu; Oh, Hyunoh | Wilus Institute of Standards and Technology Inc. | Assignment of Assignor's Interest |
| Feb 12, 2018 Reel 44905, frame 601 | Wilus Institute of Standards and Technology Inc. | Binaural Audio Technology Inc. | License |
| Jul 16, 2020 Reel 53235, frame 462 | Binaural Audio Technology Inc. | Wilus Institute of Standards and Technology Inc. | Termination Agreement of Exclusive License |
| Jun 22, 2021 Reel 56610, frame 624 | Wilus Institute of Standards and Technology Inc. | Wilus Institute of Standards and Technology Inc.; Gcoa Co., Ltd. | Assignment of Assignor's Interest |
| Jun 22, 2021 reel/frame not recorded | Wilus Institute of Standards and Technology Inc. | Wilus Institute of Standards and Technology Inc. | Assignment of Assignor's Interest |
| Jun 22, 2021 reel/frame not recorded | Wilus Institute of Standards and Technology Inc. | Gcoa Co., Ltd. | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Dec 2034
Term ends Dec 23, 2034. Maintenance fees still fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 9,832,589, ends no earlier than this term, so it caps nothing.
Citations
5
later US patents cite this one
That is above the median of utility patents granted in 2018 in our data, the only group it is compared against.
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
Computed patent terms end on the dates shown. 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.