Term ends Feb 22, 2042 · High confidence
20-year base term ends Nov 6, 2040
Held by Quantum Technologies GmbH
Filed May 5, 2022 as application 17/774,741 · Granted Sep 9, 2025
Base term plus 473 days of patent term adjustment (USPTO delay)
Today
2020
2042
Clock starts
Nov 6, 2020
Nov 6, 2020
Term ends
Feb 22, 2042
Feb 22, 2042
Granted
Sep 9, 2025
Sep 9, 2025
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
473
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 473 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 Nov 6, 2020, when application PCT/DE2020/100953, the earliest non-provisional in its chain, was filed (this one was filed May 5, 2022) | Nov 6, 2040 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +473 days, USPTO patent term adjustment record | Feb 22, 2042 | 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 | Feb 22, 2042 | High confidence |
This family
| US 12,411,025 | this patent Feb 2042 | Feb 2042 |
1 of 2 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 |
|---|---|---|---|
| Jun 2, 2022 Reel 60091, frame 678 | Burchard, Bernd; Meijer, Jan | Quantum Technologies Ug (Haftungsbeschränkt) | Assignment of Assignor's Interest |
| Jun 13, 2022 Reel 60364, frame 256 | Burchard, Bernd; Meijer, Jan | Quantum Technologies Ug (Haftungsbeschränkt); Elmos Semiconductor SE | Corrective Assignment to Correct the Add the Second Assignee Previously Recorded at Reel: 060091 Frame: 0678. Assignor(S) Hereby Confirms the Assignment. |
| Jun 13, 2022 reel/frame not recorded | Burchard, Bernd; Meijer, Jan | Quantum Technologies Ug (Haftungsbeschränkt) | Corrective Assignment to Correct the Add the Second Assignee Previously Recorded at Reel: 060091 Frame: 0678. Assignor(S) Hereby Confirms the Assignment. |
| Jun 13, 2022 reel/frame not recorded | Burchard, Bernd; Meijer, Jan | Elmos Semiconductor SE | Corrective Assignment to Correct the Add the Second Assignee Previously Recorded at Reel: 060091 Frame: 0678. Assignor(S) Hereby Confirms the Assignment. |
| Jun 17, 2022 Reel 60452, frame 420 | Burchard, Bernd; Meijer, Jan | Quantum Technologies Ug (Haftungsbeschränkt) | Corrective Assignment to Correct the Correspondent Address Previously Recorded at Reel: 060091 Frame: 0678. Assignor(S) Hereby Confirms the Assignment . |
| Sep 26, 2022 Reel 61536, frame 95 | Quantum Technologies Ug (Haftungsbeschränkt) | Quantum Technologies GmbH | Change of Name |
| Jan 4, 2026 Reel 74853, frame 1 | Elmos Semiconductor SE | Elmos Semiconductor SE | Change of Address |
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
Feb 2042
Term ends Feb 22, 2042. Maintenance fees still fall due before then
Note
The 473 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
5
later US patents cite this one
Fewer than half of the utility patents granted in 2025 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.