EXFO
Utility Patents

Last updated:

List of all EXFO patents 22 in total

Status Patent
Grant
Utility: OTDR receive device with connectivity feedback External link
Filling date: 18 Sep 2025 Issue date: 2 Aug 2022
Grant
Utility: Method and system for multi-link connection testing External link
Filling date: 18 Sep 2025 Issue date: 24 May 2022
Grant
Utility: OTDR method for end-to-end optical fiber link characterization External link
Filling date: 18 Sep 2025 Issue date: 8 Mar 2022
Grant
Utility: OTDR method targeting identified event External link
Filling date: 18 Sep 2025 Issue date: 23 Nov 2021
Grant
Utility: Automatic root cause diagnosis in networks based on hypothesis testing External link
Filling date: 18 Sep 2025 Issue date: 5 Oct 2021
Grant
Utility: Auto-detection of AxC mapping within a CPRI link External link
Filling date: 18 Sep 2025 Issue date: 28 Sep 2021
Grant
Utility: Duplicate OTDR measurement detection External link
Filling date: 18 Sep 2025 Issue date: 21 Sep 2021
Grant
Utility: Detection and tracking of interferers in a RF spectrum with multi-lane processing External link
Filling date: 18 Sep 2025 Issue date: 14 Sep 2021
Grant
Utility: Optical loss testing of multi-fiber array cables External link
Filling date: 18 Sep 2025 Issue date: 20 Jul 2021
Grant
Utility: Optical test instrument with removable cartridge External link
Filling date: 18 Sep 2025 Issue date: 1 Jun 2021
Grant
Utility: Telecommunications network and services QOE assessment External link
Filling date: 18 Sep 2025 Issue date: 1 Jun 2021
Grant
Utility: Fronthaul remote access and monitoring systems and methods to test fiber optic infrastructure and RF spectrum External link
Filling date: 18 Sep 2025 Issue date: 16 Mar 2021
Grant
Utility: Systems and methods for validation of test results in network testing External link
Filling date: 18 Sep 2025 Issue date: 2 Mar 2021
Grant
Utility: Optical fiber endface inspection with optical power measurement External link
Filling date: 18 Sep 2025 Issue date: 26 Jan 2021
Grant
Utility: OTDR receive device with connectivity feedback External link
Filling date: 18 Sep 2025 Issue date: 8 Dec 2020
Grant
Utility: System and method of communicating with and controlling a test device External link
Filling date: 18 Sep 2025 Issue date: 10 Nov 2020
Grant
Utility: Automated analysis of RF spectrum External link
Filling date: 18 Sep 2025 Issue date: 4 Aug 2020
Grant
Utility: Noise-free measurement of the spectral shape of a modulated signal using spectral correlation External link
Filling date: 18 Sep 2025 Issue date: 28 Jul 2020
Grant
Utility: Fronthaul remote access and monitoring systems and methods to test fiber optic infrastructure and RF spectrum External link
Filling date: 18 Sep 2025 Issue date: 19 May 2020
Grant
Utility: Method and system for multi-fiber cable testing External link
Filling date: 18 Sep 2025 Issue date: 17 Mar 2020
Grant
Utility: Optical power measurement in a passive optical network External link
Filling date: 18 Sep 2025 Issue date: 25 Feb 2020
Grant
Utility: Testing fiber arrangement in multi-fiber cables External link
Filling date: 18 Sep 2025 Issue date: 6 Aug 2019

Showing 1 to 22 of 22 patents.