Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Philippe Lefebvre1
Christelle Debrauwer1
Frédéric Claptien1
Julien Gouerec1
Date of Patent
July 27, 2021
1Patent Application Number
166042201
Date Filed
April 9, 2018
1Patent Citations
Patent Primary Examiner
Patent abstract
A pencil lead and a pencil containing the pencil lead wherein the pencil lead is polymer-based, extrudable, non-expanded, non-calcined and comprises graphite, of which 25% to 100% by weight or 50% to 100% by weight of the graphite, in relation to the total weight of the graphite, is expanded graphite.
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