Term ends Jan 14, 2027 · Medium confidence
20-year base term ended Oct 4, 2026
Why Medium: A parent in the chain could not be resolved.
Filed Jun 1, 2010 as application 12/791,480 · Granted Nov 3, 2015
Base term plus 102 days of patent term adjustment (USPTO delay)
Today
2006
2027
Clock starts
Oct 4, 2006
Oct 4, 2006
Term ends
Jan 14, 2027
Jan 14, 2027
Granted
Nov 3, 2015
Nov 3, 2015
base term
patent term adjustment
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
102
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.
6
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 102 days past its 20-year base term on prosecution delay. 2 of 2 maintenance fees are paid so far. Confidence: Medium. 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 Oct 4, 2006, when the earliest non-provisional application in its chain was filed (this one was filed Jun 1, 2010); a parent in its chain could not be resolved (the next row) | Oct 4, 2026 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +102 days, USPTO patent term adjustment record | Jan 14, 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 14, 2027 | Medium confidence |
This family
| US 9,317,587 | In force Apr 2029 | Apr 2029 |
| US 9,646,082 | Term ended Jan 2025 | Jan 2025 |
| US 9,177,050 | this patent Jan 2027 | Jan 2027 |
| US 9,552,420 | Term ended Jan 2025 | Jan 2025 |
| US 9,367,604 | Term ended Jan 2025 | Jan 2025 |
| US 10,387,462 | Term ended Dec 2025 | Dec 2025 |
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 35925, frame 235 | Keenan, William | Thomson Reuters Holdings, Inc. | Assignment of Assignor's Interest |
| Jun 29, 2015 Reel 35925, frame 260 | Lu, Qiang J. | Thomson Reuters Global Resource | Assignment of Assignor's Interest |
| Jun 29, 2015 Reel 35925, frame 297 | Dahn, Michael | West Publishing Corporation | Assignment of Assignor's Interest |
| Jul 1, 2015 Reel 35948, frame 174 | Conrad, Jack G. | Thomson Reuters Holdings, Inc. | Assignment of Assignor's Interest |
| Jul 20, 2015 Reel 36133, frame 482 | Thomson Reuters Holdings, Inc. | Thomson Reuters Global Resources | Assignment of Assignor's Interest |
| Jul 20, 2015 Reel 36133, frame 595 | West Publishing Corporation | Thomson Reuters Global Resources | Assignment of Assignor's Interest |
| Nov 30, 2017 Reel 44263, frame 765 | Thomson Reuters Global Resources | Thomson Reuters Global Resources Unlimited Company | Change of Name |
| Mar 5, 2020 Reel 52029, frame 94 | Thomson Reuters Global Resources Unlimited Company | Thomson Reuters Enterprise Centre GmbH | 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 14, 2027. No further fees fall due before then
Note
The 102 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
34
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.