Term ends Sep 12, 2035 · High confidence
20-year base term ends Jun 14, 2033
Held by Econtrols, LLC
Filed Jun 14, 2013 as application 13/918,882 · Granted May 1, 2018
Base term plus 820 days of patent term adjustment (USPTO delay)
Today
2013
2035
Clock starts
Jun 14, 2013
Jun 14, 2013
Term ends
Sep 12, 2035
Sep 12, 2035
Granted
May 1, 2018
May 1, 2018
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
820
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 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.
7
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 820 days past its 20-year base term on prosecution delay. 2 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 Jun 14, 2013, when this application, 13/918,882, was filed | Jun 14, 2033 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +820 days, USPTO patent term adjustment record | Sep 12, 2035 | 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 | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Sep 12, 2035 | High confidence |
This family
| US 9,957,920 | this patent Sep 2035 | Sep 2035 |
| Application PCT/US2013/046624 | PCT application no patent term | no patent term |
| US 10,316,797 | In force Jun 2033 | Jun 2033 |
| US 11,105,299 | In force Jun 2033 | Jun 2033 |
| US 11,781,508 | In force Nov 2033 | Nov 2033 |
| US 12,134,999 | In force Jun 2033 | Jun 2033 |
| Application 18/933,117 | 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 |
|---|---|---|---|
| Jun 14, 2013 Reel 30619, frame 586 | Walser, Michael W; Walser, Randall W; Cole, Christopher M; Sanders, Justin H; Grogan, Joseph; Shouse, Kenneth; Guglielmo, Kennon | Enovation Controls, LLC | Assignment of Assignor's Interest |
| Mar 21, 2014 Reel 32493, frame 57 | Walser, Michael W; Walser, Randall W; Cole, Christopher M; Sanders, Justin H; Grogan, Joseph; Shouse, Kenneth; Guglielmo, Kennon | Enovation Controls, LLC | Assignment of Assignor's Interest |
| Mar 25, 2014 Reel 32515, frame 485 | Walser, Michael W; Walser, Randall W; Grogan, Joseph; Guglielmo, Kennon; Cole, Christopher M; Sanders, Justin H; Shouse, Kenneth | Enovation Controls, LLC | Assignment of Assignor's Interest |
| Oct 17, 2014 Reel 34013, frame 158 | Enovation Controls, LLC | Bokf, NA Dba Bank of Oklahoma, as Admin. Agent | Security Agreement |
| Nov 29, 2016 Reel 40448, frame 970 | Enovation Controls, LLC | Econtrols, LLC | Assignment of Assignor's Interest |
| Dec 6, 2016 Reel 40821, frame 431 | Bokf, NA Dba Bank of Oklahoma, as Administrative Agent | Enovation Controls, LLC | Release |
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
Sep 2035
Term ends Sep 12, 2035. Maintenance fees still fall due before then
Note
The 820 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
31
later US patents cite this one
That is top 10% of utility patents granted in 2018 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.