Also listed on Unihan Corporation, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends May 25, 2028 · High confidence
20-year base term ends Dec 20, 2027
Held by Pegatron Corporation
Filed Dec 20, 2007 as application 11/960,729 · Granted Apr 27, 2010
Base term plus 157 days of patent term adjustment (USPTO delay)
Today
2007
2028
Clock starts
Dec 20, 2007
Dec 20, 2007
Term ends
May 25, 2028
May 25, 2028
Granted
Apr 27, 2010
Apr 27, 2010
base term
patent term adjustment
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
157
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 157 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 20, 2007, when this application, 11/960,729, was filed | Dec 20, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +157 days, USPTO patent term adjustment record | May 25, 2028 | 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 | May 25, 2028 | 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 27, 2007 Reel 20291, frame 20 | Tsao, Wei-chun | Asustek Computer Inc. | Assignment of Assignor's Interest |
| Feb 6, 2010 Reel 23908, frame 376 | Asustek Computer Inc. | Unihan Corporation | Assignment of Assignor's Interest |
| Jan 9, 2014 Reel 31922, frame 865 | Unihan Corporation | Pegatron Corporation | 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
May 2028
Term ends May 25, 2028. No further fees fall due before then
Note
The 157 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
2
later US patents cite this one
That is below the median of utility patents granted in 2010 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.