Term ended Apr 22, 2025 · High confidence
20-year base term ended Apr 7, 2024
Held by Tian Holdings, LLC
Filed Apr 7, 2004 as application 10/709,021 · Granted Apr 3, 2007
Base term plus 380 days of patent term adjustment (USPTO delay)
Today
Term ended Apr 22, 2025
2004
2026
Clock starts
Apr 7, 2004
Apr 7, 2004
Term ended
Apr 22, 2025
Apr 22, 2025
Granted
Apr 3, 2007
Apr 3, 2007
base term
patent term adjustment
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
380
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 380 days past its 20-year base term on prosecution delay. All three maintenance fees were paid, so no fee lapse ended it. 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 Apr 7, 2004, when this application, 10/709,021, was filed | Apr 7, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +380 days, USPTO patent term adjustment record | Apr 22, 2025 | 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 | term ended | High confidence |
| Computed term end | The steps above, in order | Apr 22, 2025 | 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 |
|---|---|---|---|
| Apr 7, 2004 Reel 14483, frame 861 | Hsiao, Yuan-kun; Wen, Luke | Via Optical Solution, Inc. | Assignment of Assignor's Interest |
| Nov 19, 2007 Reel 20135, frame 422 | Via Optical Solution, Inc. | Via Technologies, Inc. | Assignment of Assignor's Interest |
| Dec 13, 2007 Reel 20243, frame 127 | Via Technologies, Inc. | Tian Holdings, LLC | 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.
What's changing
Note
The 380 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
5
later US patents cite this one
That is below the median of utility patents granted in 2007 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.