Term ends Dec 14, 2036 · Medium confidence
20-year base term ends May 20, 2036
Filed Jul 30, 2020 as application 16/943,114 · Granted Apr 29, 2025
Base term plus 840 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2016
2036
Clock starts
May 20, 2016
May 20, 2016
Term ends
Dec 14, 2036
Dec 14, 2036
Granted
Apr 29, 2025
Apr 29, 2025
base term
patent term adjustment
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
840
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 10,344,056, US 11,230,571.
0 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.
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 840 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 0 of 2 maintenance fees are paid so far. Confidence: Medium. 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 20, 2016, when application 15/160,577, the earliest non-provisional in its chain, was filed (this one was filed Jul 30, 2020) | May 20, 2036 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +840 days, USPTO patent term adjustment record | Sep 7, 2038 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,344,056, US 11,230,571) | capped to Dec 14, 2036 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 2 maintenance fees paid | In force | High confidence |
| Further caveats on record | The record rates this date lower than the steps above account for | Medium confidence overall | Medium confidence |
| Computed term end | The steps above, in order | Dec 14, 2036 | Medium confidence |
This family
| Application 15/092,491 | Abandoned not computed | not computed |
| Application 15/154,082 | Abandoned not computed | not computed |
| US 10,081,656 | In force May 2036 | May 2036 |
| US 11,596,509 | In force Apr 2038 | Apr 2038 |
| Application 15/378,165 | Abandoned not computed | not computed |
| US 10,793,604 | In force May 2036 | May 2036 |
| Application 16/690,899 | Abandoned not computed | not computed |
| US 12,286,455 | this patent Dec 2036 | Dec 2036 |
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 |
|---|---|---|---|
| Apr 28, 2023 Reel 63477, frame 346 | Le Hir de Fallois, Loic; Pacofsky, Greg; Long, Alan; Meng, Charles; Lee, Hyoung Ik; Ogbu, Cyprian O. | Merial Inc. | Assignment of Assignor's Interest |
| May 2, 2023 Reel 63507, frame 94 | 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.
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Alerts on its grants, lapses and transfers.
What's changing
Dec 2036
Term ends Dec 14, 2036. Maintenance fees still fall due before then
Note
The 840 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 10,344,056, US 11,230,571.
Citations
0
later US patents cite this one
Fewer than half of the utility patents granted in 2025 in our data have been cited yet, so we show the count and do not rank on it.
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.