Also listed on Neophotonics Semiconductor GK, an earlier holder on the record. The recorded assignments below show how it moved.
Collateral for a security interest recorded Dec 22, 2025 (Wells Fargo Bank, National Association).
Term ends Dec 4, 2026 · High confidence
20-year base term ends Dec 4, 2026
Held by Lumentum Operations LLC
Filed Dec 4, 2006 as application 11/607,992 · Granted Sep 22, 2009
Base term, 20 years from filing
Today
2006
2026
Clock starts
Dec 4, 2006
Dec 4, 2006
Term ends
Dec 4, 2026
Dec 4, 2026
Granted
Sep 22, 2009
Sep 22, 2009
base term
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 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.
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 Dec 4, 2006, when this application, 11/607,992, was filed | Dec 4, 2026 | 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 | Dec 4, 2026 | High confidence |
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 8, 2007 Reel 18899, frame 304 | Wada, Hiroshi | OKI Electric Industry Co., Ltd. | Assignment of Assignor's Interest |
| Jan 8, 2009 Reel 22092, frame 903 | OKI Electric Industry Co., Ltd. | OKI Semiconductor Co., Ltd. | Change of Name |
| Aug 20, 2013 Reel 31040, frame 194 | Lapis Semiconductor Co., Ltd. | Neophotonics Semiconductor GK | Assignment of Assignor's Interest |
| Oct 22, 2013 Reel 31627, frame 671 | OKI Semiconductor Co., Ltd. | Lapis Semiconductor Co., Ltd. | Change of Name |
| Mar 23, 2023 Reel 63148, frame 468 | Neophotonics Semiconductor GK | Neophotonics Corporation | Assignment of Assignor's Interest |
| Aug 28, 2025 Reel 72716, frame 508 | Neophotonics Corporation | Lumentum Operations LLC | Assignment of Assignor's Interest |
| Dec 22, 2025 Reel 74974, frame 1 | Lumentum Operations LLC | Wells Fargo Bank, National Association, as Collateral Agent | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Dec 2026
Term ends Dec 4, 2026. No further fees fall due before then
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2009 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.