Also listed on TotalEnergies Solar Intl, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Mar 16, 2038 · High confidence
20-year base term ends Mar 16, 2038
Held by TotalEnergies OneTech
Filed Sep 14, 2020 as application 16/980,568 · Granted Mar 5, 2024
USPTO first gave this application the number US 11,870,255 and withdrew it before it issued. That number now leads here.
Base term, 20 years from filing
Today
2018
2038
Clock starts
Mar 16, 2018
Mar 16, 2018
Term ends
Mar 16, 2038
Mar 16, 2038
Granted
Mar 5, 2024
Mar 5, 2024
base term
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
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
0 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 is its 20-year base term, with no adjustment for prosecution delay. 0 of 3 maintenance fees are 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 Mar 16, 2018, when application PCT/US2018/022880, the earliest non-provisional in its chain, was filed (this one was filed Sep 14, 2020) | Mar 16, 2038 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | 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 | 0 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Mar 16, 2038 | High confidence |
This family
| Application PCT/US2018/022880 | PCT application no patent term | no patent term |
| US 11,923,681 | this patent Mar 2038 | Mar 2038 |
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 |
|---|---|---|---|
| Sep 14, 2020 Reel 53759, frame 807 | Zeng, Wente; Yan, Jiahong; Lu, Ning; Xie, Fuhong | Total Solar International; North Carolina State University | Assignment of Assignor's Interest |
| Sep 14, 2020 reel/frame not recorded | Xie, Fuhong; Yan, Jiahong; Zeng, Wente; Lu, Ning | Total Solar International | Assignment of Assignor's Interest |
| Sep 14, 2020 reel/frame not recorded | Xie, Fuhong; Yan, Jiahong; Zeng, Wente; Lu, Ning | North Carolina State University | Assignment of Assignor's Interest |
| Oct 4, 2024 Reel 69114, frame 445 | Total Solar International | Total Solar International | Change of Name |
| Nov 7, 2024 Reel 69313, frame 571 | Total Solar International | TotalEnergies Solar Intl | Change of Name |
| Nov 20, 2024 Reel 69335, frame 246 | TotalEnergies Solar Intl | TotalEnergies OneTech | Assignment of Assignor's Interest |
| Dec 3, 2024 Reel 69475, frame 879 | Total Solar International | Total Solar Intl | Corrective Assignment to Correct the Correct the Name and Address of the Assignee Previously Recorded at Reel: 69114 Frame: 445. Assignor(S) Hereby Confirms the Change of Name. |
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
Mar 2038
Term ends Mar 16, 2038. Maintenance fees still fall due before then
Citations
2
later US patents cite this one
Fewer than half of the utility patents granted in 2024 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.