Term ends Oct 15, 2027 · Medium confidence
20-year base term ended Feb 17, 2026
Why Medium: A parent in the chain could not be resolved.
Held by Watts Regulator Co.
Filed Jan 30, 2008 as application 12/011,902 · Granted Mar 29, 2011
Base term plus 605 days of patent term adjustment (USPTO delay)
Today
2006
2027
Clock starts
Feb 17, 2006
Feb 17, 2006
Term ends
Oct 15, 2027
Oct 15, 2027
Granted
Mar 29, 2011
Mar 29, 2011
base term
patent term adjustment
fee events
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
605
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 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.
3
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 605 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Feb 17, 2006, when application 11/357,149, the earliest non-provisional in its chain, was filed (this one was filed Jan 30, 2008); a parent in its chain could not be resolved (the next row) | Feb 17, 2026 | 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 | +605 days, USPTO patent term adjustment record | Oct 15, 2027 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Oct 15, 2027 | Medium confidence |
This family
| Application 11/357,149 | Abandoned not computed | not computed |
| US 7,913,926 | this patent Oct 2027 | Oct 2027 |
| Application 12/817,794 | 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 |
|---|---|---|---|
| Feb 18, 2008 Reel 20521, frame 133 | Goncze, Zoltan | Watts Water Technologies, Inc. | Assignment of Assignor's Interest |
| Feb 28, 2017 Reel 41399, frame 676 | Watts Water Technologies, Inc. | Watts Regulator Co. | Assignment of Assignor's Interest |
| Oct 29, 2018 Reel 48064, frame 455 | Watts Water Technologies, Inc. | Watts Regulator Co. | Corrective Assignment to Correct the Incorrect Patent No. 8132273 Previously Recorded at Reel: 041399 Frame: 0676. Assignor(S) Hereby Confirms the Assignment. |
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
Oct 2027
Term ends Oct 15, 2027. No further fees fall due before then
Note
The 605 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
32
later US patents cite this one
That is top 25% of utility patents granted in 2011 in our data, the only group it is compared against.
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.