Term ends Jul 15, 2041 · Medium confidence
20-year base term ends Dec 9, 2040
Why Medium: A parent in the chain could not be resolved.
Held by Watts Regulator Co.
Filed Jun 7, 2022 as application 17/834,513 · Granted Jan 14, 2025
Base term plus 218 days of patent term adjustment (USPTO delay)
Today
2020
2041
Clock starts
Dec 9, 2020
Dec 9, 2020
Term ends
Jul 15, 2041
Jul 15, 2041
Granted
Jan 14, 2025
Jan 14, 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
218
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 218 days past its 20-year base term on 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 Dec 9, 2020, when application 17/115,872, the earliest non-provisional in its chain, was filed (this one was filed Jun 7, 2022); a parent in its chain could not be resolved (the next row) | Dec 9, 2040 | 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 | +218 days, USPTO patent term adjustment record | Jul 15, 2041 | 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 | Jul 15, 2041 | Medium confidence |
This family
| US 11,427,992 | In force Dec 2040 | Dec 2040 |
| US 12,195,954 | this patent Jul 2041 | Jul 2041 |
| US 12,000,123 | In force Dec 2040 | Dec 2040 |
| Application 19/006,677 | 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 |
|---|---|---|---|
| Oct 20, 2022 Reel 61478, frame 828 | Burke, Joseph Michael; Simon, Kevin; Baynes, Ian David; Park, Myoung Soo | Watts Regulator Co. | 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
Jul 2041
Term ends Jul 15, 2041. Maintenance fees still fall due before then
Note
The 218 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
4
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.