Collateral for a security interest recorded Jul 26, 2024 (Volta Energy Technologies, LLC).
Term ended Dec 6, 2025 · High confidence
20-year base term ended Dec 6, 2025
Held by OneD Material, Inc.
Filed Jul 17, 2012 as application 13/551,230 · Granted May 14, 2013
Base term, 20 years from filing
Today
Term ended Dec 6, 2025
2005
2026
Clock starts
Dec 6, 2005
Dec 6, 2005
Term ended
Dec 6, 2025
Dec 6, 2025
Granted
May 14, 2013
May 14, 2013
base term
after the term ends
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.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,357,475, to Dec 6, 2025. The term already ends on or before that date, so the cap shortened nothing.
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.
11
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. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. All three maintenance fees were paid, so no fee lapse ended it. 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 Dec 6, 2005, when application 11/295,133, the earliest non-provisional in its chain, was filed (this one was filed Jul 17, 2012) | Dec 6, 2025 | 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 | Disclaimer resolved from the filed document (refs US 8,357,475) | resolves to Dec 6, 2025, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 3 of 3 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | Dec 6, 2025 | High confidence |
This family
| US 7,179,561 | Term ended Dec 2025 | Dec 2025 |
| US 7,939,218 | In force Mar 2029 | Mar 2029 |
| US 7,977,013 | Term ended Dec 2025 | Dec 2025 |
| US 7,842,432 | In force Nov 2027 | Nov 2027 |
| US 7,977,007 | Term ended Dec 2025 | Dec 2025 |
| US 8,278,011 | Surrendered on reissue Sep 2015 | Sep 2015 |
| US 8,357,475 | Term ended Dec 2025 | Dec 2025 |
| US 8,440,369 | this patent Dec 2025 | Dec 2025 |
8 of 11 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 |
|---|---|---|---|
| Apr 25, 2013 Reel 30285, frame 829 | PRVP Holdings, LLC | Nanosys, Inc. | Security Agreement |
| Jun 12, 2013 Reel 30599, frame 907 | Nanosys, Inc. | Nanosys, Inc. | Release of Security Interest |
| Feb 13, 2014 Reel 32264, frame 148 | Nanosys, Inc. | OneD Material LLC | Assignment of Assignor's Interest |
| Mar 14, 2014 Reel 32447, frame 937 | OneD Material LLC | Mpeg La, L.l.c. | Security Interest |
| Nov 5, 2014 Reel 34171, frame 227 | OneD Material LLC | Mpeg La, L.l.c. | Security Interest |
| Oct 15, 2016 Reel 40373, frame 484 | Mpeg La, L.l.c | OneD Material LLC | Release of Security Interest |
| Jul 31, 2020 Reel 53375, frame 462 | OneD Material LLC | OneD Material, Inc. | Change of Name |
| Jul 26, 2024 Reel 68174, frame 120 | OneD Material, Inc. | Volta Energy Technologies, LLC, as Collateral Agent | Patent Security Agreement |
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.
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 8,357,475, ends no earlier than this term, so it caps nothing.
Citations
21
later US patents cite this one
That is top 25% of utility patents granted in 2013 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.