Term ends Dec 13, 2031 · High confidence
20-year base term ends Sep 28, 2027
Held by Samsung Electronics Co., Ltd.
Filed Sep 28, 2007 as application 11/864,575 · Granted Mar 4, 2014
Base term plus 1537 days of patent term adjustment (USPTO delay)
Today
2007
2031
Clock starts
Sep 28, 2007
Sep 28, 2007
Term ends
Dec 13, 2031
Dec 13, 2031
Granted
Mar 4, 2014
Mar 4, 2014
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
1,537
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 1537 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 28, 2007, when this application, 11/864,575, was filed | Sep 28, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1537 days, USPTO patent term adjustment record | Dec 13, 2031 | 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 | Dec 13, 2031 | 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 |
|---|---|---|---|
| Jan 23, 2008 Reel 20402, frame 330 | Park, Human; Klostermann, Ulrich; Leuschner, Rainer | Qimonda AG; Altis Semiconductor, Snc | Assignment of Assignor's Interest |
| Jan 23, 2008 reel/frame not recorded | Klostermann, Ulrich; Leuschner, Rainer; Park, Human | Qimonda AG | Assignment of Assignor's Interest |
| Jan 23, 2008 reel/frame not recorded | Klostermann, Ulrich; Leuschner, Rainer; Park, Human | 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
Dec 2031
Term ends Dec 13, 2031. No further fees fall due before then
Note
The 1537 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
97
later US patents cite this one
That is top 5% of utility patents granted in 2014 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.