Term ends Apr 20, 2027 · High confidence
20-year base term ended Jul 25, 2026
Held by Renesas Electronics Corporation
Filed Jul 25, 2006 as application 11/492,031 · Granted Aug 4, 2009
Base term plus 269 days of patent term adjustment (USPTO delay)
Today
2006
2027
Clock starts
Jul 25, 2006
Jul 25, 2006
Term ends
Apr 20, 2027
Apr 20, 2027
Granted
Aug 4, 2009
Aug 4, 2009
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
269
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.
6
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 269 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 Jul 25, 2006, when this application, 11/492,031, was filed | Jul 25, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +269 days, USPTO patent term adjustment record | Apr 20, 2027 | 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 | Apr 20, 2027 | High confidence |
This family
| US 7,570,525 | this patent Apr 2027 | Apr 2027 |
| US 8,098,533 | Term ended Jul 2026 | Jul 2026 |
| US 8,743,645 | In force Mar 2027 | Mar 2027 |
| US 9,299,418 | Term ended Jul 2026 | Jul 2026 |
| US 9,672,900 | Term ended Jul 2026 | Jul 2026 |
| US 10,262,707 | Term ended Jul 2026 | Jul 2026 |
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 25, 2006 Reel 18131, frame 561 | Nii, Koji; Ohbayashi, Shigeki; Tsukamoto, Yasumasa; Yabuuchi, Makoto | Renesas Technology Corporation | Assignment of Assignor's Interest |
| Oct 4, 2006 Reel 18382, frame 508 | Nii, Koji; Ohbayashi, Shigeki; Tsukamoto, Yasumasa; Yabuuchi, Makoto | Renesas Technology Corp. | Re-Record to Correct the Assignee's Name on a Document Previously Recorded at Reel 018131, Frame 0561. (Assignment of Assignor's Interest) |
| Sep 15, 2010 Reel 24990, frame 59 | NEC Electronics Corporation | Renesas Electronics Corporation | Change of Name |
| Sep 15, 2010 Reel 24990, frame 98 | Renesas Technology Corp. | NEC Electronics Corporation | Merger |
| 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
Apr 2027
Term ends Apr 20, 2027. No further fees fall due before then
Note
The 269 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
117
later US patents cite this one
That is top 10% of utility patents granted in 2009 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.