Term ends Apr 4, 2032 · High confidence
20-year base term ends Jan 19, 2030
Held by BASF SE
Filed Aug 22, 2011 as application 13/144,361 · Granted Nov 29, 2016
Base term plus 806 days of patent term adjustment (USPTO delay)
Today
2010
2032
Clock starts
Jan 19, 2010
Jan 19, 2010
Term ends
Apr 4, 2032
Apr 4, 2032
Granted
Nov 29, 2016
Nov 29, 2016
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
806
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.
39
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 806 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 19, 2010, when application PCT/JP2010/050552, the earliest non-provisional in its chain, was filed (this one was filed Aug 22, 2011) | Jan 19, 2030 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +806 days, USPTO patent term adjustment record | Apr 4, 2032 | 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 | Apr 4, 2032 | High confidence |
This family
| US 9,496,551 | In force Jul 2029 | Jul 2029 |
| Application 13/121,229 | Abandoned not computed | not computed |
| US 9,505,631 | this patent Apr 2032 | Apr 2032 |
| US 9,249,034 | In force Mar 2033 | Mar 2033 |
| Application 13/503,215 | Abandoned not computed | not computed |
| US 8,986,571 | In force Jan 2032 | Jan 2032 |
| Application 13/825,584 | Abandoned not computed | not computed |
| US 9,378,876 | In force no later than Aug 2032 | no later than Aug 2032 |
8 of 39 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 |
|---|---|---|---|
| Aug 22, 2011 Reel 26826, frame 969 | Masukuni, Hiroaki; Koga, Kazumichi; Uegami, Masayuki; Matsumoto, Kazutoshi | Toda Kogyo Corporation | Assignment of Assignor's Interest |
| Jul 1, 2026 Reel 75145, frame 116 | Toda Kogyo Corp. | BASF SE | Nunc Pro Tunc Assignment |
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
Apr 2032
Term ends Apr 4, 2032. Maintenance fees still fall due before then
Note
The 806 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
49
later US patents cite this one
That is top 10% of utility patents granted in 2016 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.