Collateral for a security interest recorded Jun 30, 2025 (U.S. Bank Trust Company, National Association).
Term ends no later than Apr 7, 2034 · Medium confidence
20-year base term ends Aug 14, 2033
In force on USPTO's status record and by its fee record. A terminal disclaimer on file may shorten this term, possibly to a date already past; its reference document is unresolved, so the date above is an upper bound and no earlier date is guessed.
Held by Stem, Inc.
Filed Aug 23, 2013 as application 13/975,204 · Granted Aug 16, 2016
Base term plus 236 days of patent term adjustment (USPTO delay)
Today
2013
2034
Clock starts
Aug 14, 2013
Aug 14, 2013
Ends no later than
Apr 7, 2034
Apr 7, 2034
Granted
Aug 16, 2016
Aug 16, 2016
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
236
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
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.
6
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 236 days past its 20-year base term on prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. 2 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 Aug 14, 2013, when application 13/967,256, the earliest non-provisional in its chain, was filed (this one was filed Aug 23, 2013) | Aug 14, 2033 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +236 days, USPTO patent term adjustment record | Apr 7, 2034 | High confidence |
| Terminal disclaimer cap | Disclaimer on file (approved), reference document not resolved | no cap applied, and none guessed | Medium 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 | no later than Apr 7, 2034 | Medium confidence |
This family
| US 9,406,094 | In force no later than Aug 2033 | no later than Aug 2033 |
| US 9,418,392 | this patent no later than Apr 2034 | no later than Apr 2034 |
| US 8,880,233 | In force Aug 2033 | Aug 2033 |
| US 10,747,252 | In force Aug 2033 | Aug 2033 |
| US 11,714,441 | In force Aug 2033 | Aug 2033 |
| Application 18/360,743 | 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 |
|---|---|---|---|
| Sep 3, 2013 Reel 31129, frame 601 | Kearns, Ben; Burlinson, Jon; Stevens, Drew | Stem, Inc. | Assignment of Assignor's Interest |
| Jan 27, 2020 Reel 51629, frame 400 | Stem, Inc. | Generate Lending, LLC | Security Interest |
| May 15, 2020 Reel 52677, frame 27 | Stem, Inc. | Ares Climate Infrastructure Partners, L.P., as Administrative Agent | Security Interest |
| Apr 28, 2021 Reel 56079, frame 736 | Ares Climate Infrastructure Partners, L.P. | Stem, Inc. | Release of Patent Security Agreement Recorded at Reel 052677/FRAME 0027 |
| May 3, 2021 Reel 56121, frame 527 | Generate Lending, LLC | Stem, Inc. | Release of Intellectual Property Security Interest Recorded at Reel 051629/FRAME 0400 |
| Jun 30, 2025 Reel 71569, frame 935 | Stem, Inc. | U.S. Bank Trust Company, National Association | Security 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
Apr 2034
Term ends no later than Apr 7, 2034. Maintenance fees still fall due before then
Note
A terminal disclaimer is on file and its reference is not resolved. No cap is applied and none is guessed
Note
The 236 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Open question
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Apr 7, 2034. We will not guess the cap.
Citations
33
later US patents cite this one
That is top 25% of utility patents granted in 2016 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
This computed term ends no later than the date shown; an unresolved terminal disclaimer may end it earlier. 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.