Also listed on Wright Line, LLC, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Apr 28, 2027 · High confidence
20-year base term ended Apr 27, 2026
Held by Eaton Intelligent Power Limited
Filed Jun 29, 2012 as application 13/538,480 · Granted Mar 10, 2020
Base term plus 995 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2006
2027
Clock starts
Apr 27, 2006
Apr 27, 2006
Term ends
Apr 28, 2027
Apr 28, 2027
Granted
Mar 10, 2020
Mar 10, 2020
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
995
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 7,604,535.
1 of 1
Maintenance fees paid
One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it 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 995 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 1 of 1 maintenance fees is 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 Apr 27, 2006, when application 11/412,430, the earliest non-provisional in its chain, was filed (this one was filed Jun 29, 2012) | Apr 27, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +995 days, USPTO patent term adjustment record | Jan 16, 2029 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 7,604,535) | capped to Apr 28, 2027 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 1 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Apr 28, 2027 | High confidence |
This family
| US 7,604,535 | In force Apr 2027 | Apr 2027 |
| Application 12/409,647 | Abandoned not computed | not computed |
| US 8,764,528 | In force Aug 2028 | Aug 2028 |
| US 10,588,245 | this patent Apr 2027 | Apr 2027 |
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 |
|---|---|---|---|
| Aug 19, 2014 Reel 33565, frame 160 | Germagian, Mark; Prunier, John; Olsen, Martin | Wright Line, LLC | Assignment of Assignor's Interest |
| Aug 19, 2014 Reel 33565, frame 367 | Lucia, David; Tresh, Michael; Bednarcik, Edward | Wright Line, LLC | Assignment of Assignor's Interest |
| Dec 1, 2019 Reel 51146, frame 182 | Wright Line LLC | Eaton Intelligent Power Limited | 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
Apr 2027
Term ends Apr 28, 2027. No further fees fall due before then
Note
The 995 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 7,604,535.
Citations
7
later US patents cite this one
That is above the median of utility patents granted in 2020 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.