-
Graphite electrode
-
Patent number 9,497,804
-
Issue date Nov 15, 2016
-
GrafTech International Holdings Inc.
-
Philip D. Coleman
-
H01 - BASIC ELECTRIC ELEMENTS
-
Graphite electrodes
-
Patent number 9,253,827
-
Issue date Feb 2, 2016
-
Graftech International Holdings, Inc.
-
Philip Dennis Coleman
-
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
-
Graphite electrodes
-
Patent number 8,923,360
-
Issue date Dec 30, 2014
-
GrafTech International Holdings Inc.
-
Philip Dennis Coleman
-
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR