Collateral for a security interest recorded Sep 29, 2025 (Orc SPV LLC).
Term ends Dec 31, 2037 · High confidence
20-year base term ends Sep 30, 2035
Held by Exosome Diagnostics, Inc.
Filed Mar 30, 2017 as application 15/515,980 · Granted Oct 4, 2022
Base term plus 823 days of patent term adjustment (USPTO delay)
Today
2015
2037
Clock starts
Sep 30, 2015
Sep 30, 2015
Term ends
Dec 31, 2037
Dec 31, 2037
Granted
Oct 4, 2022
Oct 4, 2022
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
823
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 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.
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 823 days past its 20-year base term on prosecution delay. 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 Sep 30, 2015, when application PCT/US2015/053296, the earliest non-provisional in its chain, was filed (this one was filed Mar 30, 2017) | Sep 30, 2035 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +823 days, USPTO patent term adjustment record | Dec 31, 2037 | 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 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Dec 31, 2037 | High confidence |
This family
| Application PCT/US2015/053296 | PCT application no patent term | no patent term |
| US 11,457,899 | this patent Dec 2037 | Dec 2037 |
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 23, 2019 Reel 49270, frame 92 | Skog, Johan; Tisel, Bill; Baker, Joseph | Exosome Diagnostics, Inc. | Assignment of Assignor's Interest |
| Sep 29, 2025 Reel 72403, frame 19 | Exosome Diagnostics, Inc. | Orc SPV LLC | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Dec 2037
Term ends Dec 31, 2037. Maintenance fees still fall due before then
Note
The 823 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
5
later US patents cite this one
That is top 25% of utility patents granted in 2022 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.