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US

Method of Fabricating and Operating an Optical Modulator

US 9,306,672 In force, term unresolved
OverviewFamilyAssignmentsSources & methods
Collateral for a security interest recorded Jun 5, 2025 (Crystal Financial LLC D/B/A SLR Credit Solutions).

Term ends no later than Mar 14, 2033 · Medium confidence

In force on USPTO's status record and by its fee record. A terminal disclaimer on file may shorten this term, possibly to a date already past; its reference document is unresolved, so the date above is an upper bound and no earlier date is guessed.

Held by Emcore LLC
Filed Nov 21, 2013 as application 14/086,112 · Granted Apr 5, 2016
Base term, 20 years from filing
Today
20 years from filing
2013 2033
Clock starts
Mar 14, 2013
Ends no later than
Mar 14, 2033
Granted
Apr 5, 2016
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.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
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.
7
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 on file with no resolved reference, so no cap is applied and none is guessed. 2 of 3 maintenance fees are paid so far. Confidence: Medium. 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.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts Mar 14, 2013, when application 13/831,334, the earliest non-provisional in its chain, was filed (this one was filed Nov 21, 2013)Mar 14, 2033High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capDisclaimer on file (filed), reference document not resolvedno cap applied, and none guessedMedium confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderno later than Mar 14, 2033Medium confidence

This family

US 9,059,801In force
Jul 2033
Jul 2033
US 9,306,672this patent
no later than Mar 2033
no later than Mar 2033
US 9,306,372In force
Mar 2033
Mar 2033
US 9,438,007In force
Mar 2033
Mar 2033
Application PCT/US2015/050161PCT application
no patent term
no patent term
US 9,564,734In force
Mar 2033
Mar 2033
US 9,564,733In force
Mar 2033
Mar 2033
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.
RecordedAssignorAssigneeConveyance
Nov 21, 2013
Reel 31649, frame 22
Blauvelt, Henry A.; He, Xiaoguang; Vahala, KerryEmcore CorporationAssignment of Assignor's Interest
May 11, 2015
Reel 35610, frame 907
Blauvelt, Henry A.; He, Xiaoguang; Vahala, KerryEmcore CorporationAssignment of Assignor's Interest
Aug 23, 2022
Reel 61300, frame 129
Emcore CorporationWingspire Capital LLCSecurity Interest
May 22, 2025
Reel 71352, frame 537
Emcore CorporationEmcore LLCEntity Conversion
Jun 5, 2025
Reel 71520, frame 457
Emcore LLC (F/K/A Emcore Corporation); Cartridge Actuated Devices, Inc.Crystal Financial LLC D/B/A SLR Credit Solutions, as Administrative AgentSecurity Interest
Aug 25, 2025
Reel 72106, frame 561
Wingspire Capital LLCEmcore CorporationRelease of 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.

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