Also listed on Techfarm Ventures Management, LLC, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends May 17, 2027 · Medium confidence
20-year base term ended Dec 5, 2021
Why Medium: A parent in the chain could not be resolved.
Held by Nvidia Corporation
Filed Jul 18, 2002 as application 10/199,923 · Granted Jan 5, 2010
Base term plus 1989 days of patent term adjustment (USPTO delay)
Today
2001
2027
Clock starts
Dec 5, 2001
Dec 5, 2001
Term ends
May 17, 2027
May 17, 2027
Granted
Jan 5, 2010
Jan 5, 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
1,989
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.
3
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 1989 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. Confidence: Medium. 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 Dec 5, 2001, when application 10/010,018, the earliest non-provisional in its chain, was filed (this one was filed Jul 18, 2002); a parent in its chain could not be resolved (the next row) | Dec 5, 2021 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +1989 days, USPTO patent term adjustment record | May 17, 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 | May 17, 2027 | Medium confidence |
This family
| Application 10/010,018 | Abandoned not computed | not computed |
| US 7,644,279 | this patent May 2027 | May 2027 |
| US 7,802,108 | Term ended Jun 2024 | Jun 2024 |
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 18, 2002 Reel 13140, frame 172 | Rubin, Owen Robert; Murray, Eric; Uhrig, Nalini Praba | Quicksilver Technology | Assignment of Assignor's Interest |
| Aug 30, 2006 Reel 18194, frame 515 | Quicksilver Technology, Inc. | Techfarm Ventures Management, LLC | Assignment of Assignor's Interest |
| Sep 5, 2006 Reel 18224, frame 634 | Techfarm Ventures Management, LLC | QST Holdings, LLC | Assignment of Assignor's Interest |
| Jan 5, 2007 Reel 18711, frame 567 | Qst Holdings, L.l.c. | Nvidia Corporation | Assignment of Assignor's Interest |
| Feb 15, 2007 Reel 18923, frame 630 | QST Holdings, LLC | Nvidia Corporation | Corrective Assignment on Reel 018711, Frame 0567 |
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
May 2027
Term ends May 17, 2027. No further fees fall due before then
Note
The 1989 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
1
later US patent cites this one
That is below the median 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.