Also listed on U-Nav Microelectronics Corporation, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Mar 10, 2027 · High confidence
20-year base term ended Nov 10, 2025
Held by Qualcomm Incorporated
Filed Nov 10, 2005 as application 11/271,342 · Granted Mar 17, 2009
Base term plus 485 days of patent term adjustment (USPTO delay)
Today
2005
2027
Clock starts
Nov 10, 2005
Nov 10, 2005
Term ends
Mar 10, 2027
Mar 10, 2027
Granted
Mar 17, 2009
Mar 17, 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
485
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 485 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 Nov 10, 2005, when this application, 11/271,342, was filed | Nov 10, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +485 days, USPTO patent term adjustment record | Mar 10, 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 | Mar 10, 2027 | 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 10, 2005 Reel 17235, frame 659 | Lam, Kwai-kwong K.; Leon, Christopher R.; Makarem, Rabih | U-Nav Microelectronics Corporation | Assignment of Assignor's Interest |
| Feb 16, 2007 Reel 18898, frame 492 | U-Nav Microelectronics Corporation | Broadcom Corporation | Grant of Patent Security Interest |
| Jan 4, 2008 Reel 20317, frame 511 | Broadcom Corporation | U-Nav Microelectronics Corporation | Release of Security Interest in Patents |
| Mar 6, 2008 Reel 20609, frame 116 | U-Nav Microelectronics Corporation | Atheros Technology Ltd. | Assignment of Assignor's Interest |
| Aug 22, 2011 Reel 26786, frame 727 | Atheros Technology Ltd. | Qualcomm Atheros Technology Ltd. | Change of Name |
| Dec 6, 2012 Reel 29421, frame 993 | Qualcomm Atheros Technology Ltd. | Qualcomm Incorporated | Assignment of Assignor's Interest |
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
Mar 2027
Term ends Mar 10, 2027. No further fees fall due before then
Note
The 485 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
2
later US patents cite this one
That is below the median 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.