Term ends Feb 7, 2028 · High confidence
20-year base term ends Dec 21, 2027
Held by Biofrontera, Inc.
Filed Jun 22, 2009 as application 12/520,759 · Granted Jan 3, 2023
Base term plus 48 days of patent term adjustment (USPTO delay)
Today
2007
2028
Clock starts
Dec 21, 2007
Dec 21, 2007
Term ends
Feb 7, 2028
Feb 7, 2028
Granted
Jan 3, 2023
Jan 3, 2023
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
48
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 of 1
Maintenance fees paid
One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it 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 48 days past its 20-year base term on prosecution delay. 1 of 1 maintenance fees is 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 Dec 21, 2007, when application PCT/EP2007/011404, the earliest non-provisional in its chain, was filed (this one was filed Jun 22, 2009) | Dec 21, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +48 days, USPTO patent term adjustment record | Feb 7, 2028 | 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 | 1 of 1 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Feb 7, 2028 | High confidence |
This family
| US 11,540,981 | this patent Feb 2028 | Feb 2028 |
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 |
|---|---|---|---|
| Jun 22, 2009 Reel 22858, frame 861 | Foguet Roca, Montserrat | Biofrontera Bioscience GmbH | Assignment of Assignor's Interest |
| Nov 5, 2025 Reel 73509, frame 6 | Biofrontera Bioscience GmbH | Biofrontera, Inc. | Assignment of Assignor's Interest |
| Jun 8, 2026 Reel 75699, frame 753 | Biofrontera Bioscience GmbH | Biofrontera, Inc. | Corrective Assignment to Correct the Execution Date Previously Recorded on Reel 73509 Frame 6. 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
Feb 2028
Term ends Feb 7, 2028. No further fees fall due before then
Note
The 48 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
39
later US patents cite this one
That is top 5% of utility patents granted in 2023 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.