Collateral for a security interest recorded Jun 13, 2025 (Alter Domus (US) LLC).
Term ends Jun 1, 2044 · High confidence
20-year base term ends Aug 7, 2043
Held by Ascend Elements, Inc.
Filed Aug 7, 2023 as application 18/230,938 · Granted Sep 15, 2026
Base term plus 299 days of patent term adjustment (USPTO delay)
Today
2023
2044
Clock starts
Aug 7, 2023
Aug 7, 2023
Term ends
Jun 1, 2044
Jun 1, 2044
Granted
Sep 15, 2026
Sep 15, 2026
base term
patent term adjustment
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
299
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.
This patent's term runs 299 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 Aug 7, 2023, when this application, 18/230,938, was filed | Aug 7, 2043 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +299 days, USPTO patent term adjustment record | Jun 1, 2044 | 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 | Jun 1, 2044 | High confidence |
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 |
|---|---|---|---|
| Oct 15, 2024 Reel 68894, frame 100 | Liu, Yadong; Gratz, Eric; Deng, Haixia; Mistry, Dhiren; Parmar, Anil; Monzon, Martha | Ascend Elements, Inc. | Assignment of Assignor's Interest |
| May 16, 2025 Reel 71147, frame 634 | Ascend Elements, Inc. | Avenue Capital Management II, L.P. | Security Interest |
| Jun 13, 2025 Reel 71564, frame 618 | Ascend Elements, Inc. | Alter Domus (US) LLC | Intellectual Property Security Agreement |
| Dec 12, 2025 Reel 73935, frame 873 | Avenue Capital Management II, L.P. | Ascend Elements, Inc. | Termination and Release of Intellectual Property Security Agreement |
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
Jun 2044
Term ends Jun 1, 2044. Maintenance fees still fall due before then
Note
The 299 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
We have no citation count for this patent yet. That is not the same as never having been cited.
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.