Also listed on Netezza Corporation, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Mar 31, 2028 · High confidence
20-year base term ended Sep 24, 2024
Held by Workday, Inc.
Filed Sep 24, 2004 as application 10/950,070 · Granted Nov 4, 2014
Base term plus 1284 days of patent term adjustment (USPTO delay)
Today
2004
2028
Clock starts
Sep 24, 2004
Sep 24, 2004
Term ends
Mar 31, 2028
Mar 31, 2028
Granted
Nov 4, 2014
Nov 4, 2014
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
1,284
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 1284 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 Sep 24, 2004, when this application, 10/950,070, was filed | Sep 24, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1284 days, USPTO patent term adjustment record | Mar 31, 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 (reinstated) | High confidence |
| Computed term end | The steps above, in order | Mar 31, 2028 | High confidence |
This family
| US 8,880,893 | this patent Mar 2028 | Mar 2028 |
| Application PCT/US2005/033053 | PCT application no patent term | no patent term |
2 of 3 applications in this family shown, earliest filings first. 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 |
|---|---|---|---|
| Sep 30, 2011 Reel 26999, frame 53 | Moghe, Pratyush; Gehani, Narain; Smith, Peter T. | Tizor Systems, Inc. | Assignment of Assignor's Interest |
| Nov 15, 2011 Reel 27232, frame 417 | Tizor Systems, Inc. | Netezza Corporation | Assignment of Assignor's Interest |
| Dec 23, 2011 Reel 27439, frame 867 | Tizor Systems, Inc. | Netezza Corporation | Assignment of Assignor's Interest |
| Jan 19, 2012 Reel 27614, frame 356 | Tizor Systems, Inc. | Netezza Corporation | Request for Corrected Notice of Recordation to Remove Patent No. 7.415,729 Previously Incorrectly Listed on Electronically Filed Recordation Coversheet, Recorded 12/23/2011 at Reel 027439, Frames 0867-0870-Copies Attached |
| Feb 2, 2012 Reel 27642, frame 172 | Netezza Corporation | IBM International Group B.V. | Assignment of Assignor's Interest |
| Dec 17, 2018 Reel 47794, frame 779 | IBM International Group B.V. | IBM International C.V. | Nunc Pro Tunc Assignment |
| Dec 17, 2018 Reel 47794, frame 927 | IBM International C.V. | IBM Atlantic C.V. | Nunc Pro Tunc Assignment |
| Dec 17, 2018 Reel 47795, frame 1 | IBM Atlantic C.V. | IBM Technology Corporation | Nunc Pro Tunc Assignment |
| Oct 8, 2025 Reel 73051, frame 916 | International Business Machines Corporation | Workday, Inc. | 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.
What's changing
Mar 2028
Term ends Mar 31, 2028. No further fees fall due before then
Note
The 1284 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
86
later US patents cite this one
That is top 10% of utility patents granted in 2014 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.