Term ends Aug 26, 2028 · High confidence
20-year base term ended Mar 25, 2025
Held by Socionext Inc.
Filed Mar 25, 2005 as application 11/089,352 · Granted Jan 4, 2011
Base term plus 1250 days of patent term adjustment (USPTO delay)
Today
2005
2028
Clock starts
Mar 25, 2005
Mar 25, 2005
Term ends
Aug 26, 2028
Aug 26, 2028
Granted
Jan 4, 2011
Jan 4, 2011
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
1,250
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.
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 runs 1250 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 Mar 25, 2005, when this application, 11/089,352, was filed | Mar 25, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1250 days, USPTO patent term adjustment record | Aug 26, 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 | Aug 26, 2028 | High confidence |
This family
| US 7,865,733 | this patent Aug 2028 | Aug 2028 |
| US 8,886,959 | Term ended May 2025 | May 2025 |
| US 9,652,635 | Term ended Mar 2025 | Mar 2025 |
| US 9,141,829 | Term ended Mar 2025 | Mar 2025 |
| US 9,536,110 | Term ended Mar 2025 | Mar 2025 |
| US 9,672,384 | Term ended Mar 2025 | Mar 2025 |
| US 10,303,901 | Term ended Apr 2026 | Apr 2026 |
| US 10,095,890 | Term ended Mar 2025 | Mar 2025 |
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 |
|---|---|---|---|
| Mar 25, 2005 Reel 16424, frame 842 | Goto, Seiji; Kamada, Jun; Tamiya, Taiji | Fujitsu Limited | Assignment of Assignor's Interest |
| Dec 10, 2008 Reel 21985, frame 715 | Fujitsu Limited | Fujitsu Microelectronics Limited | Assignment of Assignor's Interest |
| Jul 27, 2010 Reel 24794, frame 500 | Fujitsu Microelectronics Limited | Fujitsu Semiconductor Limited | Change of Name |
| Apr 27, 2015 Reel 35508, frame 469 | Fujitsu Semiconductor Limited | Socionext Inc. | 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
Aug 2028
Term ends Aug 26, 2028. No further fees fall due before then
Note
The 1250 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
72
later US patents cite this one
That is top 10% of utility patents granted in 2011 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.