Also listed on SCT Technology, Ltd., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Apr 4, 2032 · High confidence
20-year base term ends Dec 5, 2031
Held by SCT Ltd.
Filed Dec 5, 2011 as application 13/311,035 · Granted Sep 3, 2013
Base term plus 121 days of patent term adjustment (USPTO delay)
Today
2011
2032
Clock starts
Dec 5, 2011
Dec 5, 2011
Term ends
Apr 4, 2032
Apr 4, 2032
Granted
Sep 3, 2013
Sep 3, 2013
base term
patent term adjustment
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
121
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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.
This patent's term runs 121 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Dec 5, 2011, when this application, 13/311,035, was filed | Dec 5, 2031 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +121 days, USPTO patent term adjustment record | Apr 4, 2032 | High confidence |
| Terminal disclaimer cap | None on record | no cap applied | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Apr 4, 2032 | High confidence |
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 |
|---|---|---|---|
| Dec 5, 2011 Reel 27324, frame 566 | Li, Eric; Lu, Chun | SCT Technology, Ltd. | Assignment of Assignor's Interest |
| Jul 23, 2018 Reel 46422, frame 356 | SCT Technology, Ltd. | SCT Ltd. | Assignment of Assignor's Interest |
| Sep 17, 2023 Reel 64929, frame 302 | Siliconcore Technology, Inc. | Seoul Semiconductor Co., Ltd. | License |
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.
What's changing
Apr 2032
Term ends Apr 4, 2032. No further fees fall due before then
Note
The 121 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
7
later US patents cite this one
That is below the median of utility patents granted in 2013 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.