Assignee
EXFO INC
CA·122 granted patents·31 pending applications·864 citations·filing 2006–2025
Top patents by PatentIndex Score
153 records- 0198US11906389B1System and method for assisting in fiber optic splicesEXFO INC·Filed 2022·Granted Feb 20, 2024·8 cites·21 claims
- 0298US11271641B1OTDR method for end-to-end optical fiber link characterizationEXFO INC·Filed 2020·Granted Mar 8, 2022·11 cites·20 claims
- 0396US11595125B2Transceiver agnostic GOSNR measurementEXFO INC·Filed 2021·Granted Feb 28, 2023·5 cites·23 claims
- 0496US10014935B2Multiple-acquisition OTDR method and deviceEXFO INC·Filed 2017·Granted Jul 3, 2018·14 cites·18 claims
- 0596US9749043B2Method for referencing an optical power loss measurement system, and associated computer readable memory and OPLM systemEXFO INC·Filed 2015·Granted Aug 29, 2017·12 cites·24 claims
- 0696US9170173B2Multiple-acquisition otdr method and deviceEXFO INC·Filed 2013·Granted Oct 27, 2015·25 cites·25 claims
- 0795US11125648B2Duplicate OTDR measurement detectionEXFO INC·Filed 2020·Granted Sep 21, 2021·4 cites·25 claims
- 0895US10862582B1OTDR receive device with connectivity feedbackEXFO INC·Filed 2019·Granted Dec 8, 2020·12 cites·26 claims
- 0995US9423316B2Optical reflectometer with loss and/or reflectance profile viewEXFO INC·Filed 2013·Granted Aug 23, 2016·17 cites·27 claims
- 1094US10371596B2Testing fiber arrangement in multi-fiber cablesEXFO INC·Filed 2015·Granted Aug 6, 2019·12 cites·8 claims
- 1194US9825700B2Method and system for measuring an optical power attenuation value of a multimode device under test, receive device and computer-readable memoryEXFO INC·Filed 2016·Granted Nov 21, 2017·14 cites·20 claims
- 1293US11650128B2Optical fiber recognition using backscattering patternEXFO INC·Filed 2021·Granted May 16, 2023·4 cites·22 claims
- 1393US10288524B2Testing fiber arrangement in multi-fiber cablesEXFO INC·Filed 2017·Granted May 14, 2019·9 cites·20 claims
- 1493US9709460B2Method and system for measuring an optical loss value of an optical fiber linkEXFO INC·Filed 2014·Granted Jul 18, 2017·11 cites·23 claims
- 1591US12047117B2Optical-fiber device for one-cord reference optical power loss measurementEXFO INC·Filed 2021·Granted Jul 23, 2024·2 cites·12 claims
- 1691US10591385B2Method and system for multi-fiber cable testingEXFO INC·Filed 2018·Granted Mar 17, 2020·9 cites·26 claims
- 1791US9900087B2Multimode launch systems for use in performing an OTDR measurement on a multi-fiber array DUT and method of performing sameEXFO INC·Filed 2016·Granted Feb 20, 2018·8 cites·19 claims
- 1890US11540234B2Automated narrow peak interference severity estimationEXFO INC·Filed 2020·Granted Dec 27, 2022·4 cites·18 claims
- 1990US11480496B2Test method for characterizing an optical fiber linkEXFO INC·Filed 2021·Granted Oct 25, 2022·2 cites·21 claims
- 2090US11022520B2Optical test instrument with removable cartridgeEXFO INC·Filed 2019·Granted Jun 1, 2021·13 cites·21 claims
- 2190US10200118B2Multimode launch systems for use in performing an OTDR measurement on a multi-fiber array DUT and method of performing sameEXFO INC·Filed 2018·Granted Feb 5, 2019·4 cites·21 claims
- 2290US9134197B2Bi-directional multi-pulsewidth optical time-domain reflectometerEXFO INC·Filed 2013·Granted Sep 15, 2015·11 cites·21 claims
- 2389US11956513B2Automated calibration of QoE assessment between content delivery network (CDN) entitiesEXFO INC·Filed 2021·Granted Apr 9, 2024·2 cites·20 claims
- 2489US11138163B2Automatic root cause diagnosis in networks based on hypothesis testingEXFO INC·Filed 2019·Granted Oct 5, 2021·14 cites·20 claims
- 2589USD923028SDisplay screen or portion thereof with graphical user interfaceEXFO INC·Filed 2018·Granted Jun 22, 2021·42 cites·1 claims
- 2689US9641243B2Safe-mode OTDR methodEXFO INC·Filed 2016·Granted May 2, 2017·7 cites·21 claims
- 2789USD739429SDisplay screen or portion thereof with graphical user interfaceEXFO INC·Filed 2013·Granted Sep 22, 2015·106 cites·1 claims
- 2888USD955419SDisplay screen or portion thereof with graphical user interfaceEXFO INC·Filed 2020·Granted Jun 21, 2022·22 cites·1 claims
- 2988US10659178B2Fronthaul remote access and monitoring systems and methods to test fiber optic infrastructure and RF spectrumEXFO INC·Filed 2018·Granted May 19, 2020·8 cites·20 claims
- 3088US10175142B2Multiple-fiber connector inspectionEXFO INC·Filed 2016·Granted Jan 8, 2019·8 cites·22 claims
- 3188US9506838B2Bi-directional multi-pulsewidth optical time-domain reflectometerEXFO INC·Filed 2015·Granted Nov 29, 2016·5 cites·17 claims
- 3287US9829429B2Determining a polarization-related characteristic of an optical linkEXFO INC·Filed 2013·Granted Nov 28, 2017·7 cites·40 claims
- 3387US7995915B2Method and apparatus for testing transmission lines normally propagating optical signalsEXFO INC·Filed 2007·Granted Aug 9, 2011·10 cites·44 claims
- 3486US11340137B2Method and system for multi-link connection testingEXFO INC·Filed 2019·Granted May 24, 2022·3 cites·23 claims
- 3586US9915790B2Fiber inspection microscope and power measurement system, fiber inspection tip and method using sameEXFO INC·Filed 2015·Granted Mar 13, 2018·6 cites·18 claims
- 3686US9287974B2Method and apparatus for testing transmission lines normally propagating optical signalsEXFO INC·Filed 2014·Granted Mar 15, 2016·5 cites·21 claims
- 3786US7920253B2Polarization optical time domain reflectometer and method of determining PMDEXFO INC·Filed 2006·Granted Apr 5, 2011·14 cites·29 claims
- 3885US11892507B2Early detection of quality control test failures for manufacturing end-to-end testing optimizationEXFO INC·Filed 2022·Granted Feb 6, 2024·2 cites·20 claims
- 3985US9880359B2Adapter tip and microscope system for inspection of fiber-optic connector endfaceEXFO INC·Filed 2016·Granted Jan 30, 2018·7 cites·20 claims
- 4085US9673899B2In-band OSNR measurement on polarization-multiplexed signalsEXFO INC·Filed 2014·Granted Jun 6, 2017·7 cites·26 claims
- 4185US8364034B2In-band optical noise measurement using differential polarization responseEXFO INC·Filed 2010·Granted Jan 29, 2013·8 cites·33 claims
- 4284US11879802B2Testing optical fiber link continuity using OTDR backscattering patternsEXFO INC·Filed 2021·Granted Jan 23, 2024·1 cites·18 claims
- 4384US9596027B2Signal deformation measurement on polarization-multiplexed signalsEXFO INC·Filed 2014·Granted Mar 14, 2017·6 cites·21 claims
- 4483US12050149B2Optical fiber endface inspection microscope having a swappable optical headEXFO INC·Filed 2021·Granted Jul 30, 2024·2 cites·13 claims
- 4583USD742394SDisplay screen, or portion thereof, with graphical user interface for an optical fiber microscopeEXFO INC·Filed 2013·Granted Nov 3, 2015·45 cites·1 claims
- 4682US9841579B2Multiple-fiber connector inspectionEXFO INC·Filed 2014·Granted Dec 12, 2017·5 cites·18 claims
- 4782US9733616B2Portable digital holographic probe for the inspection of optical fiber connectors, and inspection system and method for the sameEXFO INC·Filed 2012·Granted Aug 15, 2017·4 cites·23 claims
- 4881US11067478B2Optical loss testing of multi-fiber array cablesEXFO INC·Filed 2020·Granted Jul 20, 2021·1 cites·16 claims
- 4981US10900866B2Optical fiber endface inspection with optical power measurementEXFO INC·Filed 2019·Granted Jan 26, 2021·3 cites·16 claims
- 5081USD866575SDisplay screen, or portion thereof, with graphical user interface for multi-fiber connector, fiber inspection probe testingEXFO INC·Filed 2017·Granted Nov 12, 2019·32 cites·1 claims
Showing the top 50 of 153 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when EXFO INC files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →