Term ends Aug 6, 2037 · High confidence
20-year base term ends Apr 6, 2037
Held by Keranova
Filed Oct 5, 2018 as application 16/091,881 · Granted Sep 27, 2022
Base term plus 122 days of patent term adjustment (USPTO delay)
Today
2017
2037
Clock starts
Apr 6, 2017
Apr 6, 2017
Term ends
Aug 6, 2037
Aug 6, 2037
Granted
Sep 27, 2022
Sep 27, 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
122
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.
28
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 122 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 Apr 6, 2017, when application PCT/EP2017/058225, the earliest non-provisional in its chain, was filed (this one was filed Oct 5, 2018) | Apr 6, 2037 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +122 days, USPTO patent term adjustment record | Aug 6, 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 | Aug 6, 2037 | High confidence |
This family
| US 11,351,062 | In force Oct 2036 | Oct 2036 |
| US 11,234,864 | In force Oct 2038 | Oct 2038 |
| US 11,452,637 | this patent Aug 2037 | Aug 2037 |
| US 10,832,801 | In force Nov 2037 | Nov 2037 |
| Application 16/301,908 | Abandoned not computed | not computed |
| Application 16/964,234 | Abandoned not computed | not computed |
| US 11,974,569 | In force Nov 2040 | Nov 2040 |
| US 11,717,445 | In force Jun 2037 | Jun 2037 |
8 of 28 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 |
|---|---|---|---|
| Dec 14, 2018 Reel 47777, frame 770 | Romano, Fabrizio; Bernard, Aurélien; Mauclair, Cyril; Baubeau, Emmanuel | Keranova | Assignment of Assignor's Interest |
| Dec 14, 2018 Reel 48737, frame 229 | Keranova | Universite Jean Monnet Saint-Etienne; Centre National de la Recherche Scientifique; Keranova | Assignment of Part of Assignor's Interest - 5% to Universite Jean Monnet Saint-Etienne and 5% to Centre National De La Recherche Scientifique. Keranova Will Now Own 90% of Interest. |
| Dec 14, 2018 reel/frame not recorded | Keranova | Universite Jean Monnet Saint-Etienne | Assignment of Part of Assignor's Interest - 5% to Universite Jean Monnet Saint-Etienne and 5% to Centre National De La Recherche Scientifique. Keranova Will Now Own 90% of Interest. |
| Dec 14, 2018 reel/frame not recorded | Keranova | Centre National de la Recherche Scientifique | Assignment of Part of Assignor's Interest - 5% to Universite Jean Monnet Saint-Etienne and 5% to Centre National De La Recherche Scientifique. Keranova Will Now Own 90% of Interest. |
| Dec 14, 2018 reel/frame not recorded | Keranova | Keranova | Assignment of Part of Assignor's Interest - 5% to Universite Jean Monnet Saint-Etienne and 5% to Centre National De La Recherche Scientifique. Keranova Will Now Own 90% of 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.
What's changing
Aug 2037
Term ends Aug 6, 2037. Maintenance fees still fall due before then
Note
The 122 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
2
later US patents cite this one
That is above the median 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.