Also listed on Optofluidics Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Nov 27, 2043 · High confidence
20-year base term ends Aug 16, 2042
Held by Waters Technologies Corporation
Filed Aug 16, 2022 as application 17/888,936 · Granted Oct 28, 2025
Base term plus 468 days of patent term adjustment (USPTO delay)
Today
2022
2043
Clock starts
Aug 16, 2022
Aug 16, 2022
Term ends
Nov 27, 2043
Nov 27, 2043
Granted
Oct 28, 2025
Oct 28, 2025
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
468
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 468 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 16, 2022, when this application, 17/888,936, was filed | Aug 16, 2042 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +468 days, USPTO patent term adjustment record | Nov 27, 2043 | 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 | Nov 27, 2043 | High confidence |
This family
| US 12,456,315 | this patent Nov 2043 | Nov 2043 |
| Application 19/279,704 | 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 |
|---|---|---|---|
| Apr 26, 2023 Reel 63443, frame 222 | Cordovez, Bernardo; Dyer, Paul; Borg, Spencer; Ross, Adam | Optofluidics Inc. | Assignment of Assignor's Interest |
| Oct 28, 2025 Reel 72708, frame 523 | Optofluidics Inc. | Waters Technologies Corporation | 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
Nov 2043
Term ends Nov 27, 2043. Maintenance fees still fall due before then
Note
The 468 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
0
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.