Also listed on Optofluidics Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Feb 21, 2037 · High confidence
20-year base term ends Feb 21, 2037
Held by Waters Technologies Corporation
Filed May 27, 2021 as application 17/331,968 · Granted Jan 16, 2024
Base term plus 145 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2017
2037
Clock starts
Feb 21, 2017
Feb 21, 2017
Term ends
Feb 21, 2037
Feb 21, 2037
Granted
Jan 16, 2024
Jan 16, 2024
base term
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
145
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 11,035,795.
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.
5
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 145 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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 Feb 21, 2017, when application 15/438,092, the earliest non-provisional in its chain, was filed (this one was filed May 27, 2021) | Feb 21, 2037 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +145 days, USPTO patent term adjustment record | Jul 16, 2037 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 11,035,795) | capped to Feb 21, 2037 | 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 21, 2037 | High confidence |
This family
| US 11,513,333 | In force Feb 2037 | Feb 2037 |
| US 11,035,795 | In force Feb 2037 | Feb 2037 |
| US 11,874,228 | this patent Feb 2037 | Feb 2037 |
| US 12,007,548 | In force Feb 2037 | Feb 2037 |
| Application 18/193,946 | Abandoned 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 |
|---|---|---|---|
| Oct 30, 2025 Reel 72736, frame 98 | Cordovez, Bernardo; Ashcroft, Colby; Dipaolo, Brian; Konica, Gjergji; Hart, Robert; Aprelev, Alexey | Optofluidics Inc. | Assignment of Assignor's Interest |
| Oct 30, 2025 Reel 72736, frame 225 | 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.
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Alerts on its grants, lapses and transfers.
What's changing
Feb 2037
Term ends Feb 21, 2037. Maintenance fees still fall due before then
Note
The 145 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 11,035,795.
Citations
0
later US patents cite this one
Fewer than half of the utility patents granted in 2024 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.