Collateral for a security interest recorded Oct 21, 2025 (Wells Fargo Bank, National Association).
Term ends Nov 9, 2031 · High confidence
20-year base term ends Nov 9, 2031
Held by Viavi Solutions Inc.
Filed Feb 16, 2016 as application 15/044,633 · Granted Feb 7, 2017
Base term, 20 years from filing
Today
2011
2031
Clock starts
Nov 9, 2011
Nov 9, 2011
Term ends
Nov 9, 2031
Nov 9, 2031
Granted
Feb 7, 2017
Feb 7, 2017
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.
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.
5
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. 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 Nov 9, 2011, when application PCT/GB2011/052183, the earliest non-provisional in its chain, was filed (this one was filed Feb 16, 2016) | Nov 9, 2031 | 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 | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Nov 9, 2031 | High confidence |
This family
| US 9,304,017 | In force Dec 2031 | Dec 2031 |
| US 9,562,826 | this patent Nov 2031 | Nov 2031 |
| US 9,574,970 | In force Nov 2031 | Nov 2031 |
| US 9,759,633 | In force Nov 2031 | Nov 2031 |
4 of 5 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 |
|---|---|---|---|
| Feb 24, 2016 Reel 37817, frame 927 | Handerek, Vincent | Fotech Solutions Limited | Assignment of Assignor's Interest |
| Jun 29, 2020 Reel 53082, frame 233 | Fotech Solutions Limited | Fotech Group Limited | Assignment of Assignor's Interest |
| Apr 25, 2023 Reel 63427, frame 956 | Fotech Group Limited | Viavi Solutions Inc. | Assignment of Assignor's Interest |
| Oct 21, 2025 Reel 73189, frame 873 | Inertial Labs, Inc.; Viavi Solutions Inc.; Viavi Solutions Licensing LLC | Wells Fargo Bank, National Association, as Administrative Agent | Security Agreement |
| Nov 14, 2025 Reel 73571, frame 137 | Viavi Solutions Inc.; Viavi Solutions Licensing LLC; Inertial Labs, Inc. | Wells Fargo Bank, National Association, as Agent | Security Interest |
| May 28, 2026 Reel 75642, frame 381 | Wells Fargo Bank, National Association, as Administrative Agent | Inertial Labs, Inc.; Viavi Solutions Inc.; Viavi Solutions Licensing LLC | Release of Security Interest at Reel/Frame 73189/0873 |
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
Nov 2031
Term ends Nov 9, 2031. Maintenance fees still fall due before then
Citations
2
later US patents cite this one
That is below the median of utility patents granted in 2017 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.