Also listed on TotalEnergies Solar Intl, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Oct 24, 2038 · High confidence
20-year base term ends Sep 6, 2037
Held by TotalEnergies OneTech
Filed Mar 4, 2020 as application 16/644,360 · Granted Dec 12, 2023
USPTO first gave this application the number US 11,790,464 and withdrew it before it issued. That number now leads here.
Base term plus 413 days of patent term adjustment (USPTO delay)
Today
2017
2038
Clock starts
Sep 6, 2017
Sep 6, 2017
Term ends
Oct 24, 2038
Oct 24, 2038
Granted
Dec 12, 2023
Dec 12, 2023
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
413
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
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 runs 413 days past its 20-year base term on 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 Sep 6, 2017, when application PCT/US2017/050271, the earliest non-provisional in its chain, was filed (this one was filed Mar 4, 2020) | Sep 6, 2037 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +413 days, USPTO patent term adjustment record | Oct 24, 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 | 0 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Oct 24, 2038 | High confidence |
This family
| Application PCT/US2017/050271 | PCT application no patent term | no patent term |
| US 11,842,412 | this patent Oct 2038 | Oct 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 |
|---|---|---|---|
| May 29, 2020 Reel 52784, frame 632 | Chow, Mo-yuen; Becerra, Alberto Castelo; Zeng, Wente | Total Solar International; North Carolina State University | Assignment of Assignor's Interest |
| May 29, 2020 reel/frame not recorded | Zeng, Wente; Becerra, Alberto Castelo; Chow, Mo-yuen | Total Solar International | Assignment of Assignor's Interest |
| May 29, 2020 reel/frame not recorded | Zeng, Wente; Becerra, Alberto Castelo; Chow, Mo-yuen | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Oct 2038
Term ends Oct 24, 2038. Maintenance fees still fall due before then
Note
The 413 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 10% of utility patents granted in 2023 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.