E.I. du Pont de Nemours and Company v. Unifrax I, LLC, C.A. No. 14-1250 – RGA, January 13, 2016
Andrews, J. Claim construction opinion issues regarding seven terms from one patent. A Markman hearing took place on December 7, 2015
The disputed technology relates to laminate flame barrier materials. The following terms were considered:
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“laminate”
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“in order”
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“inorganic refractory layer”
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“platelets”
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“100 % by weight”
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“vermiculite”
“wherein the inorganic refectory layer of (iii)comprises platelets in an amount of 100% by weight with a dry areal weight of 15to 50 gsm and a residual moisture content of not greater than 10 percent by weight”