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Ragnar Osterlund
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Ludvika, SE
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Patents Grants
last 30 patents
Information
Patent Grant
High field strength varistor material
Patent number
9,672,964
Issue date
Jun 6, 2017
ABB Schweiz AG
Felix Greuter
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of manufacturing a varistor
Patent number
7,525,409
Issue date
Apr 28, 2009
ABB Research Ltd.
Åke Öberg
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of manufacturing a metal-oxide varistor with improved energy...
Patent number
6,802,116
Issue date
Oct 12, 2004
ABB AB
Ragnar Österlund
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
HIGH FIELD STRENGTH VARISTOR MATERIAL
Publication number
20110079755
Publication date
Apr 7, 2011
ABB TECHNOLOGY AG
Felix GREUTER
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
Method of Manufacturing a Varistor
Publication number
20080129442
Publication date
Jun 5, 2008
ABB Research Ltd.
Ake Oberg
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Method of manufacturing a metal-oxide varistor with improved energy...
Publication number
20020133936
Publication date
Sep 26, 2002
Ragnar Osterlund
H01 - BASIC ELECTRIC ELEMENTS