Also listed on Boehringer Ingelheim USA Corporation, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Mar 21, 2038 · High confidence
20-year base term ends Feb 13, 2038
Filed Feb 13, 2018 as application 15/895,876 · Granted Nov 16, 2021
Base term plus 36 days of patent term adjustment (USPTO delay)
Today
2018
2038
Clock starts
Feb 13, 2018
Feb 13, 2018
Term ends
Mar 21, 2038
Mar 21, 2038
Granted
Nov 16, 2021
Nov 16, 2021
base term
patent term adjustment
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
36
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.
12
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 36 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 Feb 13, 2018, when this application, 15/895,876, was filed | Feb 13, 2038 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +36 days, USPTO patent term adjustment record | Mar 21, 2038 | 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 | Mar 21, 2038 | High confidence |
This family
| US 11,173,022 | this patent Mar 2038 | Mar 2038 |
| US D898,901 | In force Oct 2035 | Oct 2035 |
| US 10,662,163 | In force Apr 2038 | Apr 2038 |
| Application PCT/US2020/012406 | PCT application no patent term | no patent term |
| US 11,130,739 | In force Apr 2038 | Apr 2038 |
| US 12,098,009 | In force Aug 2041 | Aug 2041 |
| Application 17/417,327 | Abandoned not computed | not computed |
| US 11,771,539 | In force Feb 2038 | Feb 2038 |
8 of 12 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 |
|---|---|---|---|
| Jul 23, 2018 Reel 46421, frame 892 | De Malibran-santibanez, Aurelie; Prado-masias, Alonso; David, Frederic | Merial, Inc. | Assignment of Assignor's Interest |
| Nov 2, 2020 Reel 54279, frame 733 | Merial, Inc. | Boehringer Ingelheim Animal Health USA Inc. | Assignment of Assignor's 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
Mar 2038
Term ends Mar 21, 2038. Maintenance fees still fall due before then
Note
The 36 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
8
later US patents cite this one
That is top 25% 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.