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Exfo Inc.

USPTO Granted Patents = 134

CIPO Patents = 1

EPO Patents = 38

Trademarks = 2

Forward Citations = 769

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94 inventors (with patents filed for the assignee):

Stephane Perron (21 out of 21 patents)

Gang He (18 out of 26 patents)

Bernard Ruchet (18 out of 19 patents)

4. Michel Leclerc (15 out of 15 patents)

5. Mario L'Heureux (14 out of 14 patents)

6. Daniel Gariepy (14 out of 15 patents)

7. Olivier Patry (11 out of 29 patents)

8. Stéphane Perron (10 out of 10 patents)

9. Robert Baribault (9 out of 14 patents)

10. Normand Cyr (9 out of 10 patents)

11. Sylvain Nadeau (7 out of 9 patents)

12. Michael Simard (6 out of 6 patents)

13. Michel Leblanc (6 out of 8 patents)

14. Mathias Westlund (5 out of 13 patents)

15. Henrik Sunnerud (5 out of 6 patents)

Core Competencies:

Optical Power Loss Measurement

Fiber-Optic Connector Inspection

Optical Fiber Inspection Probe

Quality Control Testing

Optical Test Instrument

OTDR Link Characterization

Augmented Reality Cable Tracing

Network Performance Degradation

Multi-Fiber Array Testing

Telecommunications QoE Assessment

Automated Calibration

RF Spectrum Interference Detection

134 patents: Sort by Forward Citations

1. 12520253 - RF spectrum analyzer for TDD transmission that maintains synchronization between UL and DL with a single antenna (2026-01-06),

2. 12442719 - Duplex optical power loss measurement using an adaptor device (2025-10-14),

3. 12429653 - Adapter tip and microscope system for inspecting duplex fiber-optic connector endfaces (2025-09-30),

4. D1079512 - Portable test instrument (2025-06-17),

5. D1078515 - Portable test instrument (2025-06-10),

6. D1068515 - Optical fiber inspection probe (2025-04-01),

7. 12130197 - Optical fiber endface inspection microscope having a dual illumination source (2024-10-29),

8. 12052134 - Identification of clusters of elements causing network performance degradation or outage (2024-07-30),

9. 12050150 - Spectral averaging of OTDR traces (2024-07-30),

10. 12050149 - Optical fiber endface inspection microscope having a swappable optical head (2024-07-30),

11. 12047117 - Optical-fiber device for one-cord reference optical power loss measurement (2024-07-23),

12. 11956513 - Automated calibration of QoE assessment between content delivery network (CDN) entities (2024-04-09),

13. 11921000 - Visual fiber finder for sequencing optical fiber testing (2024-03-05),

14. 11906389 - System and method for assisting in fiber optic splices (2024-02-20),

15. 11892507 - Early detection of quality control test failures for manufacturing end-to-end testing optimization (2024-02-06),

EXFO Inc. (NASDAQ: EXFO) is a leading provider of innovative test, monitoring and analytics solutions for the telecommunications industry. Their solutions enable network operators to enhance efficiency, reduce costs and deliver superior quality of service to their customers. With a portfolio that includes fiber optic, wireless and 5G testing solutions, EXFO serves a diverse range of customers worldwide. Their products are trusted by telecom companies, network equipment manufacturers and numerous other organizations in the telecommunications ecosystem.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 13 2026

134 Patents

#9 in

#94 in Canada

#5,869 in the World

Exfo Inc.

Forward Citations = 769

94 inventors:

Stephane Perron (21 out of 21 patents)

Gang He (18 out of 26 patents)

Bernard Ruchet (18 out of 19 patents)

4. Michel Leclerc (15 out of 15 patents)

5. Mario L'Heureux (14 out of 14 patents)

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