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Patent Assignment Details
NOTE:Results display only for issued patents and published applications. For pending or abandoned applications please consult USPTO staff.

Reel/Frame:024066/0687   Pages: 4
Recorded: 03/12/2010
Attorney Dkt #:EXFO INC.
Conveyance: CERTIFICATE OF AMENDMENT
Total properties: 29
1
Patent #:
Issue Dt:
04/19/1994
Application #:
07822785
Filing Dt:
01/21/1992
Title:
MEASUREMENT OF ATTENUATION OF OPTICAL FIBERS USING TRANSMITTED WAVELENGTH AND POWER INFORMATION
2
Patent #:
Issue Dt:
10/03/1995
Application #:
08229316
Filing Dt:
04/18/1994
Title:
MEASUREMENT OF ATTENUATION OF AN OPTICAL FIBER USING BIDIRECTIONAL TRANSMISSION OF INFORMATION VIA THE FIBER
3
Patent #:
Issue Dt:
05/19/1998
Application #:
08728032
Filing Dt:
10/09/1996
Title:
OPTICAL TIME DOMAIN REFLECTOMETER WITH INTERNAL REFERENCE REFLECTOR
4
Patent #:
Issue Dt:
09/02/2003
Application #:
09138393
Filing Dt:
08/24/1998
Title:
ADAPTER FOR INTERCONNECTING OPTICAL FIBER CONNECTORS
5
Patent #:
Issue Dt:
09/03/2002
Application #:
09593371
Filing Dt:
06/14/2000
Title:
DMT TEST METHOD FOR DETERMINING ADSL CAPABILITY OF CABLES
6
Patent #:
Issue Dt:
10/21/2003
Application #:
09753673
Filing Dt:
01/04/2001
Publication #:
Pub Dt:
10/18/2001
Title:
OPTICAL SPECTRUM ANALYZER
7
Patent #:
Issue Dt:
09/16/2003
Application #:
09796796
Filing Dt:
03/02/2001
Publication #:
Pub Dt:
12/06/2001
Title:
POLARIZATION INDEPENDENT PHOTODETECTOR DEVICE AND METHOD OF MAKING SAME
8
Patent #:
Issue Dt:
08/06/2002
Application #:
09821032
Filing Dt:
03/30/2001
Publication #:
Pub Dt:
12/13/2001
Title:
METHOD AND APPARATUS FOR MEASURING PHASE DIFFERENCES BETWEEN INTENSITY-MODULATED OPTICAL SIGNALS
9
Patent #:
Issue Dt:
11/16/2004
Application #:
09827141
Filing Dt:
04/06/2001
Publication #:
Pub Dt:
10/10/2002
Title:
MULTI-PASS TUNABLE OPTICAL FILTER USING A POLARIZATION-DEPENDENT FILTER ELEMENT; AND MULTI-PASS OPTICS THEREFOR
10
Patent #:
Issue Dt:
09/01/2009
Application #:
10133408
Filing Dt:
04/29/2002
Publication #:
Pub Dt:
05/22/2003
Title:
SINGLE ENDED DMT TEST METHOD FOR DETERMINING ADSL CAPABILITY OF CABLES
11
Patent #:
Issue Dt:
02/15/2005
Application #:
10281588
Filing Dt:
10/23/2002
Publication #:
Pub Dt:
05/22/2003
Title:
METHOD OF AND APPARATUS FOR MAKING WAVELENGTH-RESOLVED POLARIMETRIC MEASUREMENTS
12
Patent #:
Issue Dt:
07/13/2004
Application #:
10373736
Filing Dt:
02/27/2003
Publication #:
Pub Dt:
08/28/2003
Title:
MEASUREMENT OF OPTICAL PROPERTIES OF PASSIVE OPTICAL DEVICES USING THE MATRIX METHOD
13
Patent #:
Issue Dt:
01/23/2007
Application #:
10378000
Filing Dt:
03/04/2003
Publication #:
Pub Dt:
09/04/2003
Title:
MEASUREMENT SYSTEM FOR WIDE DYNAMIC RANGE OPTICAL POWER METER
14
Patent #:
Issue Dt:
04/20/2004
Application #:
10387803
Filing Dt:
03/14/2003
Publication #:
Pub Dt:
09/18/2003
Title:
POLARIZATION-OTDR FOR MEASURING CHARACTERISTICS OF OPTICAL FIBERS
15
Patent #:
Issue Dt:
01/31/2006
Application #:
10482844
Filing Dt:
01/06/2004
Publication #:
Pub Dt:
08/26/2004
Title:
OPTICAL ATTENTUATOR SYSTEM
16
Patent #:
Issue Dt:
03/06/2007
Application #:
10538768
Filing Dt:
06/10/2005
Publication #:
Pub Dt:
08/03/2006
Title:
METHOD AND APPARATUS FOR TESTING OPTICAL NETWORKS
17
Patent #:
Issue Dt:
06/05/2007
Application #:
10544638
Filing Dt:
08/05/2005
Publication #:
Pub Dt:
07/27/2006
Title:
METHOD AND APPARATUS FOR MEASURING POLARIZATION MODE DISPERSION
18
Patent #:
Issue Dt:
08/16/2005
Application #:
10625528
Filing Dt:
07/24/2003
Publication #:
Pub Dt:
04/07/2005
Title:
HIGH OPTICAL REJECTION OPTICAL SPECTRUM ANALYZER/MONOCHROMATOR
19
Patent #:
Issue Dt:
10/03/2006
Application #:
10986833
Filing Dt:
11/15/2004
Publication #:
Pub Dt:
05/05/2005
Title:
OPTICAL SPECTRUM ANALYZER USING A DIFFRACTION GRATING AND MULTI-PASS OPTICS
20
Patent #:
Issue Dt:
09/16/2008
Application #:
11287972
Filing Dt:
11/28/2005
Publication #:
Pub Dt:
06/01/2006
Title:
INTERFEROMETRIC OPTICAL ANALYZER AND METHOD FOR MEASURING THE LINEAR RESPONSE OF AN OPTICAL COMPONENT
21
Patent #:
Issue Dt:
06/03/2008
Application #:
11652634
Filing Dt:
01/12/2007
Publication #:
Pub Dt:
07/19/2007
Title:
WIDELY-TUNABLE LASER APPARATUS
22
Patent #:
NONE
Issue Dt:
Application #:
11727759
Filing Dt:
03/28/2007
Publication #:
Pub Dt:
05/01/2008
Title:
Polarization-sensitive optical time domain reflectometer and method for determining PMD
23
Patent #:
Issue Dt:
05/04/2010
Application #:
11885411
Filing Dt:
08/31/2007
Publication #:
Pub Dt:
08/14/2008
Title:
METHOD AND APPARATUS FOR EXTRACTING LIGHT FROM AN OPTICAL WAVEGUIDE
24
Patent #:
Issue Dt:
04/05/2011
Application #:
11992797
Filing Dt:
03/28/2008
Publication #:
Pub Dt:
10/01/2009
Title:
POLARIZATION OPTICAL TIME DOMAIN REFLECTOMETER AND METHOD OF DETERMINING PMD
25
Patent #:
Issue Dt:
07/09/2013
Application #:
12081985
Filing Dt:
04/24/2008
Publication #:
Pub Dt:
10/29/2009
Title:
Method and apparatus for identification of multiple fibers using an OTDR
26
Patent #:
Issue Dt:
05/18/2010
Application #:
12086626
Filing Dt:
06/16/2008
Publication #:
Pub Dt:
02/05/2009
Title:
ESTIMATING LOSS OF MECHANICAL SPLICES INTERCONNECTING OPTICAL FIBERS, AND CONNECTOR INSTALLATION TOOL
27
Patent #:
Issue Dt:
02/12/2013
Application #:
12292778
Filing Dt:
11/26/2008
Publication #:
Pub Dt:
05/28/2009
Title:
OPTICAL WAVEGUIDE ROTATOR MECHANISM, BIREFRINGENCE-INDUCING ELEMENT AND POLARIZATION CONTROL DEVICES EMPLOYING EITHER OR BOTH AND METHODS OF USING SAME
28
Patent #:
Issue Dt:
06/07/2011
Application #:
12373986
Filing Dt:
01/15/2009
Publication #:
Pub Dt:
12/17/2009
Title:
LASER FOR PROVIDING PULSED LIGHT AND REFLECTOMETRIC APPARATUS INCORPORATING SUCH A LASER
29
Patent #:
NONE
Issue Dt:
Application #:
12568554
Filing Dt:
09/28/2009
Publication #:
Pub Dt:
03/25/2010
Title:
Method and Apparatus for Determining Differential Group Delay and Polarization Mode Dispersion
Assignor
1
Exec Dt:
02/28/2010
Assignee
1
400 GODIN AVENUE
QUEBEC, CANADA G1M 2K2
Correspondence name and address
ADAMS PATENT & TRADEMARK AGENCY
P.O. BOX 11100, STATION H
234-555 LEGGET DRIVE
OTTAWA, K2H 7T8 CANADA

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