Collateral for a security interest recorded Feb 27, 2025 (Kreos Capital VII (UK) Limited).
Term ends May 21, 2038 · Low confidence
20-year base term ends May 21, 2038
Held by Dsrco B.V.
Filed Feb 12, 2021 as application 17/174,855 · Granted Mar 14, 2023
Base term plus 209 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2018
2038
Clock starts
May 21, 2018
May 21, 2018
Term ends
May 21, 2038
May 21, 2038
Granted
Mar 14, 2023
Mar 14, 2023
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
209
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 10,918,778.
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.
9
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 209 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 0 of 3 maintenance fees are paid so far. Confidence: Low. 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 May 21, 2018, when application 15/985,598, the earliest non-provisional in its chain, was filed (this one was filed Feb 12, 2021); a parent in its chain could not be resolved (the next row) | May 21, 2038 | 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 | +209 days, USPTO patent term adjustment record | Dec 16, 2038 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,918,778) | capped to May 21, 2038 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 3 maintenance fees paid | In force | High confidence |
| Further caveats on record | The record names parents not resolved: 15985598 | Low confidence overall | Low confidence |
| Computed term end | The steps above, in order | May 21, 2038 | Low confidence |
This family
| US 10,918,778 | In force May 2038 | May 2038 |
| US 11,602,583 | this patent May 2038 | May 2038 |
| US 11,464,891 | In force May 2038 | May 2038 |
| US 11,559,618 | In force May 2038 | May 2038 |
| Application 17/930,064 | Pending not computed | not computed |
| US 12,623,011 | In force Sep 2040 | Sep 2040 |
| US 11,844,890 | In force May 2038 | May 2038 |
| US 12,496,384 | In force May 2038 | May 2038 |
8 of 9 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 |
|---|---|---|---|
| Feb 12, 2021 Reel 55246, frame 467 | Inhaber, Neil; Fengels, Dirk; Crosbie, Ian; Johnson, Noel | Sequana Medical AG | Assignment of Assignor's Interest |
| Feb 12, 2021 Reel 55246, frame 578 | Sequana Medical AG | Sequana Medical N.V. | Change of Name |
| Sep 25, 2024 Reel 69049, frame 129 | Sequana Medical N.V. | Kreos Capital VII (UK) Limited | Security Interest |
| Feb 24, 2025 Reel 70308, frame 171 | Sequana Medical N.V. | Dsrco B.V. | Assignment of Assignor's Interest |
| Feb 27, 2025 Reel 70356, frame 934 | Dsrco B.V. | Kreos Capital VII (UK) Limited | Security 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.
What's changing
May 2038
Term ends May 21, 2038.
Note
The 209 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 10,918,778.
Citations
5
later US patents cite this one
That is top 25% 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.