Also listed on Intentional Software Corporation, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Jan 2, 2027 · High confidence
20-year base term ends Nov 20, 2026
Filed May 24, 2011 as application 13/114,109 · Granted Oct 13, 2015
Base term plus 43 days of patent term adjustment (USPTO delay)
Today
2006
2027
Clock starts
Nov 20, 2006
Nov 20, 2006
Term ends
Jan 2, 2027
Jan 2, 2027
Granted
Oct 13, 2015
Oct 13, 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
43
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. 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 43 days past its 20-year base term on prosecution delay. 2 of 2 maintenance fees are paid so far. 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 Nov 20, 2006, when application 11/561,753, the earliest non-provisional in its chain, was filed (this one was filed May 24, 2011) | Nov 20, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +43 days, USPTO patent term adjustment record | Jan 2, 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 | 2 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jan 2, 2027 | High confidence |
This family
| US 7,949,949 | Lapsed on the fee record May 2023 | May 2023 |
| US 9,158,507 | this patent Jan 2027 | Jan 2027 |
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 |
|---|---|---|---|
| Jun 29, 2015 Reel 35930, frame 225 | Simonyi, Charles; Clifford, Shane J. | Intentional Software Corporation | Assignment of Assignor's Interest |
| Sep 4, 2020 Reel 53700, frame 216 | Intentional Software Corporation | Microsoft Technology Licensing, 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Jan 2027
Term ends Jan 2, 2027. No further fees fall due before then
Note
The 43 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
18
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.