Term ends Dec 18, 2031 · High confidence
20-year base term ended Jan 26, 2026
Held by Nytell Software LLC
Filed Jan 26, 2006 as application 11/341,172 · Granted Jul 7, 2015
Base term plus 2152 days of patent term adjustment (USPTO delay)
Today
2006
2031
Clock starts
Jan 26, 2006
Jan 26, 2006
Term ends
Dec 18, 2031
Dec 18, 2031
Granted
Jul 7, 2015
Jul 7, 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
2,152
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 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.
5
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 2152 days past its 20-year base term on prosecution delay. 2 of 3 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 Jan 26, 2006, when this application, 11/341,172, was filed | Jan 26, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +2152 days, USPTO patent term adjustment record | Dec 18, 2031 | 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 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Dec 18, 2031 | High confidence |
This family
| US 9,077,691 | this patent Dec 2031 | Dec 2031 |
| US 10,536,435 | In force Jul 2028 | Jul 2028 |
| US 11,431,685 | Lapsed on the fee record Aug 2026 | Aug 2026 |
| US 11,943,206 | Term ended Feb 2026 | Feb 2026 |
| US 12,335,244 | Term ended Jan 2026 | Jan 2026 |
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 |
|---|---|---|---|
| Apr 7, 2006 Reel 17456, frame 179 | Marples, David J.; Wullert Ii, John R. | Telcordia Technologies, Inc. | Assignment of Assignor's Interest |
| Mar 17, 2009 Reel 22408, frame 410 | Wilmington Trust Company | Telcordia Technologies, Inc. | Release of Security Interest |
| Jun 24, 2009 Reel 22871, frame 920 | Telcordia Technologies, Inc. | Telcordia Licensing Company, LLC | Assignment of Assignor's Interest |
| Feb 9, 2012 Reel 27678, frame 854 | Telcordia Licensing Company LLC | Tti Inventions C LLC | Assignment of Assignor's Interest |
| Sep 28, 2015 Reel 36703, frame 191 | Tti Inventions C LLC | Nytell Software LLC | Merger |
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
Dec 2031
Term ends Dec 18, 2031. Maintenance fees still fall due before then
Note
The 2152 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
32
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.