Collateral for a security interest recorded Mar 16, 2026 (Wilmington Trust, National Association).
Term ends Dec 30, 2028 · High confidence
20-year base term ends Apr 7, 2028
Held by OptiNose Inc.
Filed Apr 7, 2017 as application 15/481,975 · Granted Jul 28, 2020
Base term plus 267 days of patent term adjustment (USPTO delay)
Today
2008
2028
Clock starts
Apr 7, 2008
Apr 7, 2008
Term ends
Dec 30, 2028
Dec 30, 2028
Granted
Jul 28, 2020
Jul 28, 2020
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
267
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 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
7
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 267 days past its 20-year base term on prosecution delay. 1 of 2 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 Apr 7, 2008, when application PCT/GB2008/001226, the earliest non-provisional in its chain, was filed (this one was filed Apr 7, 2017) | Apr 7, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +267 days, USPTO patent term adjustment record | Dec 30, 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 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Dec 30, 2028 | High confidence |
This family
| US 9,649,456 | In force Oct 2030 | Oct 2030 |
| US 8,875,704 | In force Apr 2028 | Apr 2028 |
| Application 14/842,772 | Abandoned not computed | not computed |
| US 10,722,667 | this patent Dec 2028 | Dec 2028 |
| Application 16/939,694 | Abandoned not computed | not computed |
| Application 18/643,434 | Pending not computed | not computed |
6 of 7 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 14, 2017 Reel 42710, frame 765 | Djupesland, Per Gisle; Hafner, Roderick Peter | OptiNose As | Assignment of Assignor's Interest |
| Dec 29, 2017 Reel 44976, frame 505 | OptiNose As | Athyrium Opportunities III Acquisition LP | Security Interest |
| Sep 13, 2019 Reel 50371, frame 894 | Athyrium Opportunities III Acquisition LP | OptiNose As | Release of Security Agreement Recorded at Reel 044976 Frame 0505 |
| Sep 13, 2019 Reel 50371, frame 913 | OptiNose As | Biopharma Credit PLC, as Collateral Agent | Security Interest |
| Sep 27, 2022 Reel 61546, frame 424 | OptiNose As | OptiNose Inc. | Assignment of Assignor's Interest |
| Jan 8, 2025 Reel 69847, frame 927 | OptiNose, Inc. | OptiNose, Inc. | Change of Address |
| May 21, 2025 Reel 71547, frame 979 | Biopharma Credit PLC, as Collateral Agent | OptiNose Inc. | Release of Security Interest |
| May 22, 2025 Reel 71337, frame 132 | OptiNose, Inc. | Oaktree Fund Administration, LLC | Security Interest |
| Mar 16, 2026 Reel 75111, frame 18 | OptiNose, Inc. | Wilmington Trust, National Association, as Administrative Agent | Patent Security Agreement |
| Mar 17, 2026 Reel 75101, frame 804 | Oaktree Fund Administration, LLC | OptiNose, Inc. | Release of Security Interest in Patents Recorded at Reel/Frame 71337/0132 |
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
Dec 2028
Term ends Dec 30, 2028. Maintenance fees still fall due before then
Note
The 267 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
16
later US patents cite this one
That is top 25% of utility patents granted in 2020 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.