Collateral for a security interest recorded Dec 22, 2025 (Wells Fargo Bank, National Association).
Term ends Jan 24, 2029 · High confidence
20-year base term ended Oct 13, 2026
Held by Lumentum Operations LLC
Filed May 13, 2008 as application 12/120,170 · Granted Jan 31, 2012
Base term plus 834 days of patent term adjustment (USPTO delay)
Today
2006
2029
Clock starts
Oct 13, 2006
Oct 13, 2006
Term ends
Jan 24, 2029
Jan 24, 2029
Granted
Jan 31, 2012
Jan 31, 2012
base term
patent term adjustment
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
834
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
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.
15
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 834 days past its 20-year base term on 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 Oct 13, 2006, when application 11/581,201, the earliest non-provisional in its chain, was filed (this one was filed May 13, 2008) | Oct 13, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +834 days, USPTO patent term adjustment record | Jan 24, 2029 | 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 | Jan 24, 2029 | High confidence |
This family
| US 7,580,637 | In force Oct 2027 | Oct 2027 |
| US 8,107,821 | this patent Jan 2029 | Jan 2029 |
| US 8,107,820 | In force Jan 2029 | Jan 2029 |
| US 8,412,051 | Term ended Oct 2026 | Oct 2026 |
| US 9,312,951 | In force Oct 2027 | Oct 2027 |
| US 9,071,349 | In force Sep 2027 | Sep 2027 |
| US 8,929,744 | In force Mar 2027 | Mar 2027 |
| US 9,071,361 | Term ended Oct 2026 | Oct 2026 |
8 of 15 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 |
|---|---|---|---|
| May 14, 2008 Reel 20945, frame 1 | El-ahmadi, Siraj Nour; Hotchkiss, Adam R.; El-ahmadi, Salam; Wilcox, Reginald | Menara Networks, Inc. | Assignment of Assignor's Interest |
| May 20, 2016 Reel 38768, frame 769 | Silicon Valley Bank | Menara Networks, Inc. | Release of Security Interest |
| May 2, 2019 Reel 49062, frame 969 | Menara Networks, Inc. | Ipg Photonics Corporation | Merger |
| Aug 19, 2022 Reel 61233, frame 161 | Ipg Photonics 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
Jan 2029
Term ends Jan 24, 2029. No further fees fall due before then
Note
The 834 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
49
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.