Also listed on 3PAR Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Jan 18, 2028 · High confidence
20-year base term ended May 2, 2022
Filed May 2, 2002 as application 10/138,990 · Granted Jan 24, 2012
Base term plus 2087 days of patent term adjustment (USPTO delay)
Today
2002
2028
Clock starts
May 2, 2002
May 2, 2002
Term ends
Jan 18, 2028
Jan 18, 2028
Granted
Jan 24, 2012
Jan 24, 2012
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
2,087
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 2087 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 May 2, 2002, when this application, 10/138,990, was filed | May 2, 2022 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +2087 days, USPTO patent term adjustment record | Jan 18, 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 | Jan 18, 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 |
|---|---|---|---|
| May 2, 2002 Reel 12891, frame 492 | Luong, Hoa V.; Thomas, Sushil | 3PARDATA, Inc. | Assignment of Assignor's Interest |
| Feb 28, 2008 Reel 20571, frame 664 | 3PARDATA, Inc. | 3PAR Inc. | Change of Name |
| May 10, 2011 Reel 26250, frame 322 | 3PAR Inc. | Hewlett-packard Development Company, L.p. | Assignment of Assignor's Interest |
| Nov 9, 2015 Reel 37079, frame 1 | Hewlett-packard Development Company, L.p. | Hewlett Packard Enterprise Development LP | 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
Jan 2028
Term ends Jan 18, 2028. No further fees fall due before then
Note
The 2087 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
43
later US patents cite this one
That is top 25% of utility patents granted in 2012 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.