Collateral for a security interest recorded Feb 27, 2025 (Kreos Capital VII (UK) Limited).
Term ends May 21, 2038 · High confidence
20-year base term ends May 21, 2038
Held by Dsrco B.V.
Filed May 21, 2018 as application 15/985,598 · Granted Feb 16, 2021
Base term, 20 years from filing
Today
2018
2038
Clock starts
May 21, 2018
May 21, 2018
Term ends
May 21, 2038
May 21, 2038
Granted
Feb 16, 2021
Feb 16, 2021
base term
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
None
Term adjustment
No prosecution delay on this record.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 10,898,631, to May 21, 2038. The term already ends on or before that date, so the cap shortened nothing.
1 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 is its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 1 of 3 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 May 21, 2018, when this application, 15/985,598, was filed | May 21, 2038 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,898,631) | resolves to May 21, 2038, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | May 21, 2038 | High confidence |
This family
| US 10,918,778 | this patent May 2038 | May 2038 |
| US 11,602,583 | In force 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 |
|---|---|---|---|
| May 29, 2018 Reel 45921, frame 738 | Inhaber, Neil; Fengels, Dirk; Crosbie, Ian; Johnson, Noel | Sequana Medical AG | Assignment of Assignor's Interest |
| Jun 9, 2019 Reel 49414, frame 245 | Sequana Medical AG | Sequana Medical N.V. | Change of Name |
| Jul 31, 2020 Reel 53375, frame 176 | Bootstrap Europe S.C.SP. | Sequana Medical N.V. | Release of Security Interest |
| 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. Maintenance fees still fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 10,898,631, ends no earlier than this term, so it caps nothing.
Citations
16
later US patents cite this one
That is top 10% of utility patents granted in 2021 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.