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:
Jan. 03, 2023
Filed:
Nov. 18, 2021
Johnson Matthey Public Limited Company, London, GB;
Peter Bellham, Royston, GB;
Andrew Chiffey, Royston, GB;
Lucy Clowes, Royston, GB;
Thomas Hotchkiss, Royston, GB;
David Marvell, Royston, GB;
John Turner, Royston, GB;
Sarah Warren, Royston, GB;
Johnson Matthey Public Limited Company, London, GB;
Abstract
A vehicular exhaust filter comprising a porous substrate having an inlet face and an outlet face with the porous substrate comprising inlet channels extending from the inlet face and outlet channels extending from the outlet face is disclosed. The inlet channels and the outlet channels are separated by a plurality of filter walls having a porous structure. The vehicular exhaust filter is loaded with a refractory powder having a tapped density before loading of less than 0.10 g/cmand the vehicular exhaust filter has a mass loading of the refractory powder of less than 10 g/l.