Also listed on SunEdison, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Collateral for a security interest recorded Jul 3, 2025 (Acquiom Agency Services LLC).
Term ends Sep 6, 2027 · High confidence
20-year base term ends Sep 6, 2027
Held by FTC Solar, Inc.
Filed Apr 15, 2010 as application 12/761,325 · Granted Aug 7, 2012
Base term, 20 years from filing
Today
2007
2027
Clock starts
Sep 6, 2007
Sep 6, 2007
Term ends
Sep 6, 2027
Sep 6, 2027
Granted
Aug 7, 2012
Aug 7, 2012
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.
2
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 Sep 6, 2007, when application 11/851,299, the earliest non-provisional in its chain, was filed (this one was filed Apr 15, 2010) | Sep 6, 2027 | 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 | Sep 6, 2027 | High confidence |
This family
| US 7,721,492 | Lapsed on the fee record May 2022 | May 2022 |
| US 8,234,821 | this patent Sep 2027 | Sep 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 |
|---|---|---|---|
| Mar 18, 2013 Reel 30036, frame 707 | PVT Solar, Inc. | Triplepoint Capital LLC | Security Agreement |
| Jul 28, 2015 Reel 36194, frame 567 | Plaisted, Joshua Reed; West, Brian | Kineo Design Group, LLC | Assignment of Assignor's Interest |
| Jul 28, 2015 Reel 36194, frame 912 | Kineo Design Group, LLC | PVT Solar, LLC | Assignment of Assignor's Interest |
| Jul 28, 2015 Reel 36195, frame 281 | PVT Solar, Inc. | SunEdison, Inc. | Assignment of Assignor's Interest |
| Jul 28, 2015 Reel 36195, frame 426 | PVT Solar, LLC | PVT Solar, Inc. | Change of Name |
| Aug 11, 2015 Reel 36329, frame 470 | SunEdison, Inc.; Sun Edison LLC; Solaicx; NVT, LLC | Goldman Sachs Bank USA, as Administrative Agent | Security Interest |
| Jan 12, 2016 Reel 37485, frame 343 | SunEdison, Inc.; Sun Edison LLC; Solaicx | Wells Fargo Bank, National Association, as Administrative Agent | Security Interest |
| Jan 13, 2016 Reel 37508, frame 606 | SunEdison, Inc.; Sun Edison LLC; Solaicx; NVT, LLC | Wilmington Trust, National Association, Solely in Its Capacity as Collateral Trustee | Security Interest |
| Jan 13, 2016 Reel 37508, frame 884 | Goldman Sachs Bank USA, as Administrative Agent | SunEdison, Inc.; Sun Edison LLC; Solaicx; NVT, LLC | Release of Security Interest |
| Jan 13, 2016 reel/frame not recorded | Goldman Sachs Bank USA, as Administrative Agent | SunEdison, Inc. | Release of Security Interest |
| Jan 13, 2016 reel/frame not recorded | Goldman Sachs Bank USA, as Administrative Agent | Sun Edison LLC | Release of Security Interest |
| Jan 13, 2016 reel/frame not recorded | Goldman Sachs Bank USA, as Administrative Agent | Solaicx | Release of Security Interest |
| Jan 13, 2016 reel/frame not recorded | Goldman Sachs Bank USA, as Administrative Agent | NVT, LLC | Release of Security Interest |
| Apr 28, 2016 Reel 38557, frame 472 | SunEdison, Inc. | Deutsche Bank AG New York Branch, as Administrative Agent | Patent Security Agreement |
| Aug 16, 2017 Reel 43569, frame 300 | SunEdison Inc.; SunEdison Utility Holdings, Inc.; PVT Solar, Inc.; SunEdison Products Singapore Pte. Ltd. | FTC Solar, Inc. | Assignment of Assignor's Interest |
| Apr 30, 2021 Reel 56106, frame 643 | FTC Solar, Inc. | Barclays Bank PLC | Intellectual Property Security Agreement |
| Nov 26, 2024 Reel 69450, frame 947 | Barclays Bank PLC, as Administrative Agent | FTC Solar, Inc. | Release of Security Interest |
| Jul 3, 2025 Reel 71827, frame 404 | FTC Solar, Inc. | Acquiom Agency Services LLC | 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.
What's changing
Sep 2027
Term ends Sep 6, 2027. No further fees fall due before then
Citations
34
later US patents cite this one
That is top 25% of utility patents granted in 2012 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.