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:
Mar. 18, 2003
Filed:
Jul. 26, 2000
Applicant:
Inventors:
Michael James Baker, Feltham, GB;
John William Couves, High Wycombe, GB;
Kenneth George Griffin, Royston, GB;
Peter Johnston, Royston, GB;
James Colin McNicol, Pinner, GB;
George Frederick Salem, Naperville, IL (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01J 2/300 ; B01J 2/340 ; B01J 2/342 ; B01J 2/358 ; B01J 2/372 ;
U.S. Cl.
CPC ...
B01J 2/300 ; B01J 2/340 ; B01J 2/342 ; B01J 2/358 ; B01J 2/372 ;
Abstract
Composition and process for making same in which the composition includes support particles having at least one catalytically active metal or precursor thereof distributed therein in a layer below the surface of the particle. The layer is located between an inner and an outer region of the support particle, and each of the inner and outer regions has a lower concentration of the metal or precursor thereof than the layer.