Also listed on Eturbotouch Technology Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Oct 20, 2033 · High confidence
20-year base term ends May 28, 2033
Held by Wistron Corporation
Filed May 28, 2013 as application 13/902,990 · Granted Mar 1, 2016
Base term plus 145 days of patent term adjustment (USPTO delay)
Today
2013
2033
Clock starts
May 28, 2013
May 28, 2013
Term ends
Oct 20, 2033
Oct 20, 2033
Granted
Mar 1, 2016
Mar 1, 2016
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
145
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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.
This patent's term runs 145 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are paid so far. 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 May 28, 2013, when this application, 13/902,990, was filed | May 28, 2033 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +145 days, USPTO patent term adjustment record | Oct 20, 2033 | 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 | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Oct 20, 2033 | 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 |
|---|---|---|---|
| May 28, 2013 reel/frame not recorded | Wang, Kuei-ching; Yu, Wen-cheng | Wistron Corporation | Assignment of Assignor's Interest |
| May 28, 2013 reel/frame not recorded | Wang, Kuei-ching; Yu, Wen-cheng | Eturbotouch Technology Inc. | Assignment of Assignor's Interest |
| May 28, 2013 Reel 30490, frame 310 | Wang, Kuei-ching; Yu, Wen-cheng | Wistron Corporation; Eturbotouch Technology Inc. | Assignment of Assignor's Interest |
| Jun 3, 2021 Reel 56430, frame 92 | Eturbotouch Technology Inc. | Wistron Corporation | Assignment of Assignor's Interest |
| Jul 23, 2021 Reel 57043, frame 583 | Eturbotouch Technology Inc. | Wistron Corporation | Corrective Assignment to Correct the Receiving Party Street Address Also Cit Previously Recorded at Reel: 56430 Frame: 092. Assignor(S) Hereby Confirms the Assignment. |
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
Oct 2033
Term ends Oct 20, 2033. Maintenance fees still fall due before then
Note
The 145 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
9
later US patents cite this one
That is above the median of utility patents granted in 2016 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.