Also listed on International Business Machines Corporation, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Nov 22, 2026 · High confidence
20-year base term ended Jul 22, 2025
Held by Daedalus Blue LLC
Filed Jul 22, 2005 as application 11/187,268 · Granted Jun 2, 2009
Base term plus 488 days of patent term adjustment (USPTO delay)
Today
2005
2026
Clock starts
Jul 22, 2005
Jul 22, 2005
Term ends
Nov 22, 2026
Nov 22, 2026
Granted
Jun 2, 2009
Jun 2, 2009
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
488
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.
2
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 488 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 Jul 22, 2005, when this application, 11/187,268, was filed | Jul 22, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +488 days, USPTO patent term adjustment record | Nov 22, 2026 | 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 | Nov 22, 2026 | High confidence |
This family
| US 7,542,957 | this patent Nov 2026 | Nov 2026 |
| Application 90/015,414 | Pending not computed | not computed |
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 |
|---|---|---|---|
| Dec 9, 2005 Reel 16876, frame 938 | Roy, Patrick; Masson, Matt | Cognos Incorporated | Assignment of Assignor's Interest |
| Aug 15, 2008 Reel 21387, frame 813 | Cognos Incorporated | Cognos ULC | Certificate of Amalgamation |
| Aug 15, 2008 Reel 21387, frame 837 | Cognos ULC | IBM International Group B.V. | Assignment of Assignor's Interest |
| Aug 15, 2008 Reel 21398, frame 1 | IBM International Group B.V. | International Business Machines Corporation | Assignment of Assignor's Interest |
| Nov 14, 2019 Reel 51032, frame 784 | International Business Machines Corporation | Daedalus Group LLC | Assignment of Assignor's Interest |
| Jan 27, 2020 Reel 51710, frame 445 | International Business Machines Corporation | Daedalus Group, LLC | Assignment of Assignor's Interest |
| Jan 29, 2020 Reel 51737, frame 191 | Daedalus Group, LLC | Daedalus Blue LLC | 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
Nov 2026
Term ends Nov 22, 2026. No further fees fall due before then
Note
The 488 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
19
later US patents cite this one
That is above 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.