Also listed on Varentec, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Jun 4, 2032 · High confidence
20-year base term ends Jun 4, 2032
Filed Jun 4, 2012 as application 13/488,330 · Granted Apr 21, 2015
Base term, 20 years from filing
Today
2012
2032
Clock starts
Jun 4, 2012
Jun 4, 2012
Term ends
Jun 4, 2032
Jun 4, 2032
Granted
Apr 21, 2015
Apr 21, 2015
base term
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
None
Term adjustment
No prosecution delay on this record.
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.
10
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 is its 20-year base term, with no adjustment for prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 4, 2012, when this application, 13/488,330, was filed | Jun 4, 2032 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | 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 | Jun 4, 2032 | High confidence |
This family
| US 9,014,867 | this patent Jun 2032 | Jun 2032 |
| Application PCT/US2012/055619 | PCT application no patent term | no patent term |
| Application PCT/US2012/068307 | PCT application no patent term | no patent term |
| Application PCT/US2012/068316 | PCT application no patent term | no patent term |
| US 9,134,746 | In force Sep 2033 | Sep 2033 |
| US 9,104,184 | In force May 2033 | May 2033 |
| US 9,293,922 | In force Jun 2032 | Jun 2032 |
| US 10,541,533 | In force Jun 2032 | Jun 2032 |
8 of 10 applications in this family shown, earliest filings first. 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 |
|---|---|---|---|
| Dec 31, 2012 Reel 29550, frame 846 | Divan, Deepakraj; Dillon, Andrew | Varentec, Inc. | Assignment of Assignor's Interest |
| Oct 30, 2019 Reel 50869, frame 593 | Varentec, Inc. | Windsail Capital Fund, L.p. | Security Interest |
| Feb 11, 2021 Reel 55238, frame 621 | Windsail Capital Fund, L.P., as Agent | Varentec, Inc. | Release of Security Interest |
| Feb 22, 2021 Reel 55351, frame 601 | Varentec, Inc. | Sentient Energy Technology, LLC | Assignment of Assignor's Interest |
| Aug 19, 2025 Reel 72058, frame 771 | Sentient Energy Technology, LLC | Sentient Technology Holdings, LLC | 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.
What's changing
Jun 2032
Term ends Jun 4, 2032. No further fees fall due before then
Citations
21
later US patents cite this one
That is top 25% of utility patents granted in 2015 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.