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Illumination Device for Photodynamic Therapy, Method for Treating a Skin Disease and Method for Operating an Illumination Device

US 12,472,374 In force
OverviewFamilyAssignmentsSources & methods

Also listed on Biofrontera Bioscience GmbH, an earlier holder on the record. The recorded assignments below show how it moved.

Term ends Oct 15, 2040 · High confidence

Filed Oct 15, 2020 as application 17/071,496 · Granted Nov 18, 2025
Base term, 20 years from filing
Today
20 years from filing
2020 2040
Clock starts
Oct 15, 2020
Term ends
Oct 15, 2040
Granted
Nov 18, 2025
base term 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
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
0 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.
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 is its 20-year base term, with no adjustment for prosecution delay. 0 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.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts Oct 15, 2020, when this application, 17/071,496, was filedOct 15, 2040High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events0 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderOct 15, 2040High confidence

This family

US 12,472,374this patent
Oct 2040
Oct 2040
US 11,235,169In force
Oct 2040
Oct 2040
US D1,021,120In force
Apr 2039
Apr 2039
Application 18/248,672Pending
not computed
not computed
US D1,148,164In force
Sep 2041
Sep 2041
5 of 6 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.
RecordedAssignorAssigneeConveyance
Nov 19, 2020
Reel 54421, frame 867
Osterloh, Markus, DR.; Novak, Ben, DR.; Lübbert, Hermann, DR.Biofrontera Bioscience GmbHAssignment of Assignor's Interest
Jan 11, 2021
Reel 54874, frame 896
Biofrontera Bioscience GmbHBiofrontera Pharma GmbHAssignment of Assignor's Interest
Nov 5, 2025
Reel 73487, frame 1
Biofrontera Pharma GmbHBiofrontera, Inc.Assignment of Assignor's Interest
Jan 26, 2026
Reel 74863, frame 943
Biofrontera Pharma GmbHBiofrontera, Inc.Corrective Assignment to Correct the Execution Date Previously Recorded on Reel 73487 Frame 1. Assignor(S) Hereby Confirms the Assignment .
Jul 22, 2026
Reel 75363, frame 101
Sinn, ChristianBiofrontera Pharma GmbHAssignment of Assignor's Interest
Oct 20, 2026
Reel 76724, frame 292
Biofrontera Pharma GmbHBiofrontera, Inc.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.

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