Term ended May 9, 2026 · Medium confidence
20-year base term ended May 9, 2026
Why Medium: A parent in the chain could not be resolved.
Held by Seoul Viosys Co., Ltd.
Filed Feb 8, 2013 as application 13/762,932 · Granted Oct 14, 2014
Base term, 20 years from filing
Today
Term ended May 9, 2026
2006
2026
Clock starts
May 9, 2006
May 9, 2006
Term ended
May 9, 2026
May 9, 2026
Granted
Oct 14, 2014
Oct 14, 2014
base term
after the term ends
fee events
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.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,395,332, to May 9, 2026. The term already ends on or before that date, so the cap shortened nothing.
3 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.
10
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. All three maintenance fees were paid, so no fee lapse ended it. 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 May 9, 2006, when application PCT/KR2006/001726, the earliest non-provisional in its chain, was filed (this one was filed Feb 8, 2013); a parent in its chain could not be resolved (the next row) | May 9, 2026 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,395,332) | resolves to May 9, 2026, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 3 of 3 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | May 9, 2026 | Medium confidence |
This family
| US 8,188,687 | In force Nov 2027 | Nov 2027 |
| US 9,030,110 | In force Dec 2027 | Dec 2027 |
| US 8,716,946 | Term ended May 2026 | May 2026 |
| US 8,896,216 | In force Aug 2027 | Aug 2027 |
| US 8,395,332 | Term ended May 2026 | May 2026 |
| US 8,860,331 | this patent May 2026 | May 2026 |
| US 8,866,417 | Term ended May 2026 | May 2026 |
| US 9,445,462 | Term ended May 2026 | May 2026 |
8 of 10 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 |
|---|---|---|---|
| Apr 21, 2014 Reel 32723, frame 126 | Seoul Opto Device Co., Ltd. | Seoul Viosys 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.
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Alerts on its grants, lapses and transfers.
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 8,395,332, ends no earlier than this term, so it caps nothing.
Citations
2
later US patents cite this one
That is below the median of utility patents granted in 2014 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.