Term ends May 15, 2036 · High confidence
20-year base term ends Oct 7, 2035
Held by Optum, Inc.
Filed Apr 7, 2017 as application 15/517,772 · Granted Mar 23, 2021
Base term plus 221 days of patent term adjustment (USPTO delay)
Today
2015
2036
Clock starts
Oct 7, 2015
Oct 7, 2015
Term ends
May 15, 2036
May 15, 2036
Granted
Mar 23, 2021
Mar 23, 2021
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
221
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.
5
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 221 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 Oct 7, 2015, when application PCT/US2015/054444, the earliest non-provisional in its chain, was filed (this one was filed Apr 7, 2017) | Oct 7, 2035 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +221 days, USPTO patent term adjustment record | May 15, 2036 | 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 | May 15, 2036 | High confidence |
This family
| Application PCT/US2015/054444 | PCT application no patent term | no patent term |
| US 10,956,612 | this patent May 2036 | May 2036 |
| US 11,423,173 | In force Jan 2036 | Jan 2036 |
| US 11,657,182 | In force Oct 2035 | Oct 2035 |
| US 11,907,399 | In force Oct 2035 | Oct 2035 |
The applications whose file history this site holds. The family may have others.
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
May 2036
Term ends May 15, 2036. Maintenance fees still fall due before then
Note
The 221 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
25
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.