Also listed on Techfarm Ventures Management, LLC, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends May 15, 2028 · High confidence
20-year base term ended Feb 13, 2023
Held by Nvidia Corporation
Filed Feb 13, 2003 as application 10/367,188 · Granted Feb 3, 2015
Base term plus 1918 days of patent term adjustment (USPTO delay)
Today
2003
2028
Clock starts
Feb 13, 2003
Feb 13, 2003
Term ends
May 15, 2028
May 15, 2028
Granted
Feb 3, 2015
Feb 3, 2015
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
1,918
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 1918 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 Feb 13, 2003, when this application, 10/367,188, was filed | Feb 13, 2023 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1918 days, USPTO patent term adjustment record | May 15, 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 | May 15, 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 |
|---|---|---|---|
| Feb 13, 2003 Reel 13777, frame 272 | Hogenauer, Eugene B. | Quicksilver Technology, Inc. | 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 2028
Term ends May 15, 2028. No further fees fall due before then
Note
The 1918 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
24
later US patents cite this one
That is top 25% of utility patents granted in 2015 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.