Also listed on BASF Performance Products LLC, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Jun 3, 2029 · Medium confidence
20-year base term ends Apr 20, 2029
Why Medium: A parent in the chain could not be resolved.
Held by Sun Chemical Corporation
Filed Jun 24, 2009 as application 12/490,423 · Granted Sep 6, 2011
Base term plus 44 days of patent term adjustment (USPTO delay)
Today
2009
2029
Clock starts
Apr 20, 2009
Apr 20, 2009
Term ends
Jun 3, 2029
Jun 3, 2029
Granted
Sep 6, 2011
Sep 6, 2011
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
44
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 44 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Apr 20, 2009, when application 12/446,252, the earliest non-provisional in its chain, was filed (this one was filed Jun 24, 2009); a parent in its chain could not be resolved (the next row) | Apr 20, 2029 | 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 | +44 days, USPTO patent term adjustment record | Jun 3, 2029 | 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 | Jun 3, 2029 | Medium confidence |
This family
| US 8,013,045 | this patent Jun 2029 | Jun 2029 |
1 of 2 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 17, 2009 Reel 23104, frame 573 | Ruch, Thomas; Luterbacher, Ursula | Ciba Corporation | Conditional Assignment |
| Aug 2, 2011 Reel 26683, frame 434 | Ciba Corporation | BASF SE | Asset Transfer Agreement |
| May 6, 2023 Reel 63558, frame 155 | BASF Performance Products LLC | BASF Corporation | Merger |
| May 6, 2023 Reel 63558, frame 162 | BASF Corporation | BASF Colors & Effects USA LLC | Nunc Pro Tunc Assignment |
| May 6, 2023 Reel 63558, frame 165 | BASF Colors & Effects USA LLC | Colors & Effects USA LLC | Change of Name |
| May 6, 2023 Reel 63558, frame 176 | Colors & Effects USA LLC | Sun Chemical Corporation | Nunc Pro Tunc Assignment |
| May 6, 2023 Reel 63559, frame 342 | Ciba Corporation | BASF Performance Products LLC | Change of Name |
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
Jun 2029
Term ends Jun 3, 2029. No further fees fall due before then
Note
The 44 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
1
later US patent cites this one
That is below the median of utility patents granted in 2011 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.