Also listed on Microsoft Corporation, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends May 6, 2042 · High confidence
20-year base term ends Jul 13, 2041
Filed Jan 12, 2023 as application 18/005,246 · Granted Jul 15, 2025
Base term plus 297 days of patent term adjustment (USPTO delay)
Today
2021
2042
Clock starts
Jul 13, 2021
Jul 13, 2021
Term ends
May 6, 2042
May 6, 2042
Granted
Jul 15, 2025
Jul 15, 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
297
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.
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 runs 297 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 Jul 13, 2021, when application PCT/US2021/041502, the earliest non-provisional in its chain, was filed (this one was filed Jan 12, 2023) | Jul 13, 2041 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +297 days, USPTO patent term adjustment record | May 6, 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 | May 6, 2042 | High confidence |
This family
| Application 13/539,332 | Abandoned not computed | not computed |
| Application PCT/US2021/041502 | PCT application no patent term | no patent term |
| US 12,360,749 | this patent May 2042 | May 2042 |
| Application 19/238,321 | Pending not computed | not computed |
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 23, 2023 Reel 64044, frame 806 | Gordon, Kenneth; Webster, Samuel Alexander; Volos, Stavros; Vaswani, Kapil; Vembu, Balaji; Fournet, Cédric Alain Marie | Microsoft Technology Licensing, LLC | Assignment of Assignor's Interest |
| Jun 23, 2023 Reel 64045, frame 318 | Wilkinson, Daniel John Pelham; Osborne, Richard; Cunningham, Graham Bernard | Graphcore Limited | Assignment of Assignor's Interest |
| Mar 25, 2025 Reel 70612, frame 274 | Graphcore Limited | Microsoft Corporation | Assignment of Assignor's Interest |
| Mar 27, 2025 Reel 70644, frame 336 | Microsoft Corporation | Microsoft Technology Licensing, LLC | 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 2042
Term ends May 6, 2042. Maintenance fees still fall due before then
Note
The 297 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
1
later US patent cites 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.