Also listed on Quantum IP, LLC, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends May 25, 2041 · Medium confidence
20-year base term ends May 25, 2041
Why Medium: A parent in the chain could not be resolved.
Held by Quantum IP Holdings Pty Limited
Filed Feb 15, 2023 as application 18/169,445 · Granted Apr 21, 2026
Base term, 20 years from filing
Today
2021
2041
Clock starts
May 25, 2021
May 25, 2021
Term ends
May 25, 2041
May 25, 2041
Granted
Apr 21, 2026
Apr 21, 2026
base term
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
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.
4
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: 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 25, 2021, when application PCT/AU2021/050497, the earliest non-provisional in its chain, was filed (this one was filed Feb 15, 2023); a parent in its chain could not be resolved (the next row) | May 25, 2041 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium 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 | May 25, 2041 | Medium confidence |
This family
| US 11,604,187 | In force May 2041 | May 2041 |
| US 12,607,627 | this patent May 2041 | May 2041 |
| Application 19/574,007 | Pending not computed | not computed |
3 of 4 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 |
|---|---|---|---|
| Oct 3, 2023 Reel 65103, frame 543 | King, Paul Jeremy; Lo, Camden Yeung-wah | Quantum IP Holdings Pty Limited | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
May 2041
Term ends May 25, 2041. Maintenance fees still fall due before then
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.