Term ends Nov 23, 2026 · High confidence
20-year base term ended Mar 14, 2025
Held by Udc Ireland Limited
Filed Sep 25, 2006 as application 10/594,132 · Granted Jul 6, 2010
Base term plus 619 days of patent term adjustment (USPTO delay)
Today
2005
2026
Clock starts
Mar 14, 2005
Mar 14, 2005
Term ends
Nov 23, 2026
Nov 23, 2026
Granted
Jul 6, 2010
Jul 6, 2010
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
619
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 619 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Mar 14, 2005, when application PCT/EP2005/002697, the earliest non-provisional in its chain, was filed (this one was filed Sep 25, 2006) | Mar 14, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +619 days, USPTO patent term adjustment record | Nov 23, 2026 | 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 | Nov 23, 2026 | High confidence |
This family
| US 7,750,556 | this patent Nov 2026 | Nov 2026 |
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 |
|---|---|---|---|
| Jul 13, 2007 Reel 19554, frame 757 | Gessner, Thomas; Lennartz, Christian; Schmidt, Hans-werner; Thelakkat, Mukundan; Baete, Markus | BASF Aktiengesellschaft | Assignment of Assignor's Interest |
| Jul 25, 2016 Reel 39460, frame 615 | BASF SE | Udc Ireland Limited | Assignment of Assignor's Interest |
| Jun 8, 2017 Reel 42740, frame 222 | BASF SE | Udc Ireland Limited | Corrective Assignment to Correct the Incorrect Appl. No. 14/901,736 Previously Recorded at Reel: 039460 Frame: 0615. Assignor(S) Hereby Confirms the 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
Nov 2026
Term ends Nov 23, 2026. No further fees fall due before then
Note
The 619 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
2
later US patents cite this one
That is below the median of utility patents granted in 2010 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.