Charles Irsak

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Olmsted Falls, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
High porosity/low permeability graphite bodies and process for the...
- Patent number 9,546,113
- Issue date Jan 17, 2017
- GrafTech INternational Holding Inc.
- Chong Chen
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
High porosity/low permeability graphite bodies and process for the...
- Patent number 8,721,939
- Issue date May 13, 2014
- GrafTech International Holdings Inc.
- Chong Chen
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES

Patents Applicationslast 30 patents

Information Patent Application
High Porosity/Low Permeability Graphite Bodies And Process For The...
- Publication number 20120308472
- Publication date Dec 6, 2012
- Chong Chen
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Application
High Porosity/Low Permeability Graphite Bodies And Process For the...
- Publication number 20110135908
- Publication date Jun 9, 2011
- Chong Chen
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES