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Leif Fredin
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Austin, TX, US
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Patents Grants
last 30 patents
Information
Patent Grant
Method and system for measuring optical scattering characteristics
Patent number
7,057,714
Issue date
Jun 6, 2006
Systems & Processes Engineering Corporation
Leif Fredin
G01 - MEASURING TESTING
Information
Patent Grant
Systems and devices for dynamic processing of optical signals
Patent number
7,024,085
Issue date
Apr 4, 2006
Finisar Corporation
Terry L. Markwardt
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Dynamic variable optical attenuator and variable optical tap
Patent number
6,778,736
Issue date
Aug 17, 2004
Finisar Corporation
Terry L. Markwardt
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and system for measuring optical scattering characteristics
Patent number
6,606,148
Issue date
Aug 12, 2003
Systems and Processes Engineering Corp.
Leif Fredin
G01 - MEASURING TESTING
Information
Patent Grant
Method and system for sensing optical fiber temperature
Patent number
6,524,001
Issue date
Feb 25, 2003
Systems and Processes Engineering Corp.
Leif Fredin
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Information
Patent Application
Systems and devices for dynamic processing of optical signals
Publication number
20040218855
Publication date
Nov 4, 2004
Terry L. Markwardt
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method and system for measuring optical scattering characteristics
Publication number
20040027560
Publication date
Feb 12, 2004
Systems and Processes Engineering Corporation
Leif Fredin
G01 - MEASURING TESTING
Information
Patent Application
Method and system for measuring optical scattering characteristics
Publication number
20030021528
Publication date
Jan 30, 2003
Leif Fredin
G01 - MEASURING TESTING
Information
Patent Application
Dynamic variable optical attenuator and variable optical tap
Publication number
20020131712
Publication date
Sep 19, 2002
Terry L. Markwardt
G02 - OPTICS