Term ends Feb 9, 2028 · High confidence
20-year base term ends Sep 17, 2027
Held by Samsung Electronics Co., Ltd.
Filed Sep 17, 2007 as application 11/856,668 · Granted Nov 23, 2010
Base term plus 145 days of patent term adjustment (USPTO delay)
Today
2007
2028
Clock starts
Sep 17, 2007
Sep 17, 2007
Term ends
Feb 9, 2028
Feb 9, 2028
Granted
Nov 23, 2010
Nov 23, 2010
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
145
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 145 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 Sep 17, 2007, when this application, 11/856,668, was filed | Sep 17, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +145 days, USPTO patent term adjustment record | Feb 9, 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 | Feb 9, 2028 | 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 |
|---|---|---|---|
| Nov 23, 2007 Reel 20149, frame 342 | Klostermann, Ulrich | Qimonda AG; Altis Semiconductor, Snc | Assignment of Assignor's Interest |
| Nov 23, 2007 reel/frame not recorded | Klostermann, Ulrich | Qimonda AG | Assignment of Assignor's Interest |
| Nov 23, 2007 reel/frame not recorded | Klostermann, Ulrich | Altis Semiconductor, Snc | Assignment of Assignor's Interest |
| May 8, 2015 Reel 35623, frame 1 | Qimonda AG | Infineon Technologies AG | Assignment of Assignor's Interest |
| Mar 24, 2016 Reel 38238, frame 955 | Infineon Technologies AG | Samsung Electronics Co., Ltd. | Confirmatory Patent 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
Feb 2028
Term ends Feb 9, 2028. No further fees 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
98
later US patents cite this one
That is top 10% of utility patents granted in 2010 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.