Also listed on Renesas Technology Corporation, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Oct 7, 2029 · High confidence
20-year base term ends Mar 9, 2029
Held by Renesas Electronics Corporation
Filed Mar 9, 2009 as application 12/400,436 · Granted Aug 16, 2011
Base term plus 212 days of patent term adjustment (USPTO delay)
Today
2009
2029
Clock starts
Mar 9, 2009
Mar 9, 2009
Term ends
Oct 7, 2029
Oct 7, 2029
Granted
Aug 16, 2011
Aug 16, 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
212
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.
2
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 212 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 9, 2009, when this application, 12/400,436, was filed | Mar 9, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +212 days, USPTO patent term adjustment record | Oct 7, 2029 | 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 | Oct 7, 2029 | High confidence |
This family
| US 7,999,345 | this patent Oct 2029 | Oct 2029 |
| US 8,455,943 | In force Jul 2029 | Jul 2029 |
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 |
|---|---|---|---|
| Jul 29, 2010 Reel 24755, frame 338 | Renesas Technology Corp. | Renesas Electronics Corporation | Merger and Change of Name |
| Apr 22, 2011 Reel 26169, frame 343 | Nakazawa, Yoshito; Matsuura, Hitoshi | Renesas Technology Corp. | Assignment of Assignor's Interest |
| Nov 29, 2017 Reel 44928, frame 1 | Renesas Electronics Corporation | Renesas Electronics Corporation | Change of Address |
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 2029
Term ends Oct 7, 2029. No further fees fall due before then
Note
The 212 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
32
later US patents cite this one
That is top 25% 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.