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:
Apr. 20, 2010
Filed:
Aug. 18, 2004
Daniel M. Giaquinta, Mountain View, CA (US);
Peter Strasser, Houston, TX (US);
Alexander Gorer, San Jose, CA (US);
Martin Devenney, Mountain View, CA (US);
Hiroyuki Oyanagi, Utsunomiya, JP;
Kenta Urata, Wako, JP;
Hiroichi Fukuda, Saitama, JP;
Keith James Cendak, San Mateo, CA (US);
Konstantinos Chondroudis, Thessaloniki, GR;
Daniel M. Giaquinta, Mountain View, CA (US);
Peter Strasser, Houston, TX (US);
Alexander Gorer, San Jose, CA (US);
Martin Devenney, Mountain View, CA (US);
Hiroyuki Oyanagi, Utsunomiya, JP;
Kenta Urata, Wako, JP;
Hiroichi Fukuda, Saitama, JP;
Keith James Cendak, San Mateo, CA (US);
Konstantinos Chondroudis, Thessaloniki, GR;
Symyx Solutions, Inc., Sunnyvale, CA (US);
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention is directed to a composition for use as a catalyst in, for example, a fuel cell, the composition comprising platinum and copper, wherein the concentration of platinum is greater than 50 atomic percent and less than about 80 atomic percent, and further wherein the composition has a particle size which is less than 35 angstroms. The present invention is further directed to various methods for preparing such a composition.