Also listed on Sigma Designs, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Feb 3, 2028 · High confidence
20-year base term ended Jan 24, 2026
Held by Sigma Designs Israel S.D.I Ltd.
Filed Jan 24, 2006 as application 11/339,293 · Granted Jul 7, 2009
Base term plus 740 days of patent term adjustment (USPTO delay)
Today
2006
2028
Clock starts
Jan 24, 2006
Jan 24, 2006
Term ends
Feb 3, 2028
Feb 3, 2028
Granted
Jul 7, 2009
Jul 7, 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
740
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 740 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 Jan 24, 2006, when this application, 11/339,293, was filed | Jan 24, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +740 days, USPTO patent term adjustment record | Feb 3, 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 3, 2028 | High confidence |
This family
| US 7,558,294 | this patent Feb 2028 | Feb 2028 |
| US 7,894,487 | Term ended Jan 2026 | Jan 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 |
|---|---|---|---|
| Aug 31, 2006 Reel 18225, frame 477 | Gavette, Sherman Leon | Sharp Corporation | Assignment of Assignor's Interest |
| Aug 31, 2006 Reel 18225, frame 519 | Petranovich, James E.; Riedel, Neal K.; Peponides, George M. | Conexant Systems, Inc. | Assignment of Assignor's Interest |
| Aug 31, 2006 Reel 18226, frame 533 | Yonge, Lawrence W., III; Katar, Srinivas; Vandermey, Timothy J. | Intellon Corporation | Assignment of Assignor's Interest |
| Feb 25, 2009 Reel 22305, frame 837 | Conexant Systems, Inc. | Coppergate Communications Ltd. | Assignment of Assignor's Interest |
| Mar 19, 2010 Reel 24103, frame 834 | Intellon Corporation | Atheros Powerline LLC | Merger |
| Mar 19, 2010 Reel 24103, frame 872 | Atheros Powerline LLC | Atheros Communications, Inc. | Assignment of Assignor's Interest |
| Nov 30, 2011 Reel 27301, frame 678 | Atheros Communications, Inc. | Qualcomm Atheros, Inc. | Merger |
| Jan 2, 2013 Reel 29555, frame 769 | Qualcomm Atheros, Inc. | Qualcomm Incorporated | Assignment of Assignor's Interest |
| Apr 26, 2013 Reel 30292, frame 452 | Coppergate Communications Ltd. | Sigma Designs Israel S.D.I Ltd. | Change of Name |
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 3, 2028. No further fees fall due before then
Note
The 740 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
83
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.