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Long length electrodes
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Patent number 10,237,928
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Issue date Mar 19, 2019
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GrafTech International Holdings Inc.
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Diane M. Artman
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Electrode torque measurement device
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Patent number 9,383,278
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Issue date Jul 5, 2016
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Contractors & Industrial Supply Company, Inc.
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Tom D. Schiller
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Electrode joint locking system
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Patent number 9,313,834
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Issue date Apr 12, 2016
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GrafTech Institute Holdings Inc.
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Mark Segger
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Joint design
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Patent number 8,165,183
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Issue date Apr 24, 2012
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GrafTech International Holdings, Inc.
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Bill Varela
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Locking ring for graphite electrodes
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Patent number 7,466,739
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Issue date Dec 16, 2008
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GrafTech International Holdings Inc.
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Brian Bowman
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Regulation system analysis method
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Patent number 7,313,160
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Issue date Dec 25, 2007
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GrafTech International Holdings Inc.
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Ronald E. Gerhan
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F27 - FURNACES KILNS OVENS RETORTS
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Male-female electrode joint
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Patent number 7,301,982
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Issue date Nov 27, 2007
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GrafTech International Holdings Inc.
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Robert E. Smith
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H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
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Electrode joint locking system
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Patent number 7,230,969
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Issue date Jun 12, 2007
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Ucar Carbon Company Inc.
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Mark Segger
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR