Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Bernard Ruchet — 21 Patents

EXExfo: 18 patents #2 of 88Top 3%
EEExfo Electro-Optical Engineering: 2 patents #6 of 19Top 35%
Keyano, CA: #36 of 1,768 inventorsTop 3%
Overall (All Time): #201,324 of 4,157,543Top 5%
21 Patents All Time
Bernard Ruchet has been granted 21 US patents while listed as an inventor at Exfo. The first was granted in 2005 and the most recent in May 2023. Bernard Ruchet ranks #201,324 of 4,157,543 US inventors in our database (top 4.8%). Patent records list Bernard Ruchet in Keyano, QC, CA.

Patents per Year

Patents granted per year, 2005 to 2023Bar chart with a peak of 4 patents in 2017.peak 42005: 1 patents20052007: 1 patents2011: 1 patents20112013: 3 patents2014: 2 patents20142016: 2 patents2017: 4 patents20172018: 1 patents2019: 3 patents20192020: 2 patents2023: 1 patents2023

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11644381 Polarization dependent loss measurement Normand Cyr 2023-05-09
10727940 Noise-free measurement of the spectral shape of a modulated signal using spectral correlation Normand Cyr, Gang He 2020-07-28 $1,280,000
10574378 Optical power measurement in a passive optical network Mario L'Heureux, Daniel Gariepy, Etienne Morin-Drouin 2020-02-25 $1,055,000
10270554 Optical power measurement in a passive optical network Mario L'Heureux, Daniel Gariepy, Etienne Morin-Drouin 2019-04-23 $1,461,000
10200118 Multimode launch systems for use in performing an OTDR measurement on a multi-fiber array DUT and method of performing same 2019-02-05 $934,000
10175142 Multiple-fiber connector inspection Denis Lafrance, Robert Baribault 2019-01-08 $903,000
9900087 Multimode launch systems for use in performing an OTDR measurement on a multi-fiber array DUT and method of performing same 2018-02-20 $1,129,000
9831948 Optical power measurement in a passive optical network Mario L'Heureux, Daniel Gariepy 2017-11-28 $540,000
9825700 Method and system for measuring an optical power attenuation value of a multimode device under test, receive device and computer-readable memory Gang He 2017-11-21 $1,121,000
9733616 Portable digital holographic probe for the inspection of optical fiber connectors, and inspection system and method for the same Normand Cyr 2017-08-15 $944,000
9654213 Method and apparatus for testing transmission lines normally propagating optical signals Normand Cyr 2017-05-16 $1,231,000
9438336 Characterization of non-ASE noise on optical signals Gang He, Daniel Gariepy, Hongxin Chen 2016-09-06 $928,000
9287974 Method and apparatus for testing transmission lines normally propagating optical signals Normand Cyr 2016-03-15 $763,000
8861953 Method and apparatus for testing transmission lines normally propagating optical signals Normand Cyr 2014-10-14 $913,000
8768180 All-optical, phase sensitive optical signal sampling Mathias Westlund, Mats Skold, Henrik Sunnerud, Peter Andrekson 2014-07-01 $1,232,000
8554023 Unbalanced Mach-Zehnder interferometer and modulator based thereupon 2013-10-08 $1,325,000
8482725 Method and apparatus for identification of multiple fibers using an OTDR Stephane Perron, Michel Joseph LeBlanc 2013-07-09 $1,273,000
8373852 Optical waveguide rotator mechanism, birefringence-inducing element and polarization control devices employing either or both and methods of using same Eric Girard, Gang He 2013-02-12 $1,592,000
7995915 Method and apparatus for testing transmission lines normally propagating optical signals Normand Cyr 2011-08-09 $2,506,000
7187861 Method and apparatus for testing optical networks 2007-03-06 $2,228,000
6856398 Method of and apparatus for making wavelength-resolved polarimetric measurements 2005-02-15 $1,552,000