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Quebec City, Canada

Exfo Electro-optical Engineering, Inc.

USPTO Granted Patents = 19

Forward Citations = 284

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21 inventors (with patents filed for the assignee):

Gang He (7 out of 26 patents)

Gregory Walter Schinn (4 out of 7 patents)

Normand Cyr (4 out of 5 patents)

4. Daniel Gariépy (3 out of 3 patents)

5. François Babin (3 out of 3 patents)

6. Michel Leblanc (2 out of 8 patents)

7. Bernard Ruchet (2 out of 2 patents)

8. Martin Lamonde (2 out of 2 patents)

9. Daniel Gariépy (2 out of 2 patents)

10. Steeve Potvin (2 out of 2 patents)

11. François Babin (1 out of 15 patents)

12. Hongxin Chen (1 out of 5 patents)

13. Andre Rekai (1 out of 1 patent)

14. Vladislav Narojnyi (1 out of 1 patent)

15. Christian Olivier (1 out of 1 patent)

19 patents: Sort by Forward Citations

1. 7583727 - Single ended DMT test method for determining ADSL capability of cables (2009-09-01),

2. 7382810 - Widely-tunable laser apparatus (2008-06-03),

3. 7227645 - Method and apparatus for measuring polarization mode dispersion (2007-06-05),

4. 7187861 - Method and apparatus for testing optical networks (2007-03-06),

5. 7167655 - Measurement system for wide dynamic range optical power meter (2007-01-23),

6. 7116848 - Optical spectrum analyzer using a diffraction grating and multi-pass optics (2006-10-03),

7. 6992828 - Optical attentuator system (2006-01-31),

8. 6930776 - High optical rejection optical spectrum analyzer/monochromator (2005-08-16),

9. 6856398 - Method of and apparatus for making wavelength-resolved polarimetric measurements (2005-02-15),

10. 6819429 - Multi-pass optical spectrum analyzer having a polarization-dependent tunable filter (2004-11-16),

11. 6762829 - Measurement of optical properties of passive optical devices using the matrix method (2004-07-13),

12. 6724469 - Polarization-OTDR for measuring characteristics of optical fibers (2004-04-20),

13. 6636306 - Optical spectrum analyzer (2003-10-21),

14. 6621067 - Polarization independent photodetector device and method of making same (2003-09-16),

15. 6612750 - Adapter for interconnecting optical fiber connectors (2003-09-02),

EXFO is a global provider of test, monitoring and analytics solutions for fixed and mobile network operators, webscale companies and equipment manufacturers in the communications industry. Their expertise lies in the development of next-generation test and service assurance solutions that help their customers improve network performance and deliver optimal user experiences. With a wide range of products and solutions, EXFO aims to empower their customers to efficiently deploy, maintain, and optimize their network infrastructure.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 2 2025

19 Patents

#1 in Quebec City

#737 in Canada

#31,648 in the World

Quebec City, Canada

Exfo Electro-optical Engineering, Inc.

Forward Citations = 284

21 inventors:

Gang He (7 out of 26 patents)

Gregory Walter Schinn (4 out of 7 patents)

Normand Cyr (4 out of 5 patents)

4. Daniel Gariépy (3 out of 3 patents)

5. François Babin (3 out of 3 patents)

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