The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 24, 2019
Filed:
Feb. 04, 2015
Johnson Matthey Fuel Cells Limited, London, GB;
Technical Fibre Products Limited, Kendal Cumbria, GB;
James Matthew Cash, Kendal Cumbria, GB;
Michael Jeschke, Kendal Cumbria, GB;
Victoria Jane Wright, Kendal Cumbria, GB;
Jonathan David Brereton Sharman, Reading Berkshire, GB;
Technical Fibre Products Limited, Kendal, England, GB;
Abstract
A porous gas diffusion substrate that includes: (a) a porous non-woven web comprising carbon fibers; and (b) a carbonaceous residue; wherein the carbonaceous residue is embedded within the porous non-woven web; (c) a fluorinated polymer; and (d) inert particles wherein at least some of the carbon fibers of the porous non-woven web have a coating comprising the fluorinated polymer and inert particles is disclosed.