The Patent Finder
US

Optical Modulator Having a Plurality of Modulator Segments

US 9,519,162 In force
OverviewFamilyAssignmentsSources & methods

Term ends Oct 9, 2035 · High confidence

Filed Oct 9, 2015 as application 14/879,149 · Granted Dec 13, 2016
Base term, 20 years from filing
Today
20 years from filing
2015 2035
Clock starts
Oct 9, 2015
Term ends
Oct 9, 2035
Granted
Dec 13, 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.
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.
StepInputDate after this stepConfidence
Base term, 20 years from filingClock starts Oct 9, 2015, when this application, 14/879,149, was filedOct 9, 2035High confidence
Continuity chainEvery parent in the chain resolvedno changeHigh confidence
Patent term adjustmentNone on fileno changeHigh confidence
Terminal disclaimer capNone on recordno cap appliedHigh confidence
Patent term extensionNone on fileno changeHigh confidence
Fee events2 of 3 maintenance fees paidIn forceHigh confidence
Computed term endThe steps above, in orderOct 9, 2035High confidence

This family

US 9,519,162this patent
Oct 2035
Oct 2035
US 9,874,767In force
Oct 2035
Oct 2035
US 10,451,903In force
Oct 2035
Oct 2035
US 10,656,441In force
Oct 2035
Oct 2035
US 11,209,674In force
Oct 2035
Oct 2035
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
Oct 9, 2015
Reel 36762, frame 926
Ding, Ran; Baehr-jones, Thomas Wetteland; Magill, Peter D.; Hochberg, Michael J.; Rylyakov, AlexanderCoriant Advanced Technology, LLCAssignment of Assignor's Interest
Dec 8, 2016
Reel 40852, frame 121
Coriant Advanced Technology, LLCElenion Technologies, LLCChange of Name
Apr 16, 2018
Reel 45959, frame 1
Elenion Technologies CorporationEastward Fund Management, LLCSecurity Interest
Feb 8, 2019
Reel 48289, frame 60
Elenion Technologies, LLC; Elenion Technologies CorporationHercules Capital Inc., as AgentSecurity Interest
Feb 8, 2019
Reel 48290, frame 70
Eastward Fund Management, LLCElenion Technologies CorporationRelease of Security Interest
Mar 27, 2020
Reel 52251, frame 186
Hercules Capital, Inc.Elenion Technologies Corporation; Elenion Technologies, LLCRelease of Security Interest
Mar 27, 2020
reel/frame not recorded
Hercules Capital, Inc.Elenion Technologies CorporationRelease of Security Interest
Mar 27, 2020
reel/frame not recorded
Hercules Capital, Inc.Elenion Technologies, LLCRelease of Security Interest
Apr 10, 2023
Reel 63272, frame 876
Elenion Technologies LLCNokia Solutions and Networks OyAssignment 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.

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited