Patents by Inventor Clayton V. Hamilton, Jr.

Clayton V. Hamilton, Jr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7622217
    Abstract: A fuel cell cathode catalyst is provided comprising nanostructured elements comprising microstructured support whiskers bearing nanoscopic catalyst particles; wherein the catalyst comprises platinum and manganese and at least one other metal selected from the group consisting of Group VIb metals, Group VIIb metals and Group VIIIb metals other than platinum and manganese; wherein the volume ratio of platinum to the sum of all other metals in the catalyst is between about 1 and about 4 and wherein the Mn content is equal to or greater than about 5 micrograms/cm2 areal density. Typically, the volume ratio of manganese to the at least one other metal is between 10:90 and 90:10. Typically, the at least one other metal is Ni or Co. In addition, a fuel cell MBA comprising the present cathode catalyst is provided. In addition, methods of making the present cathode catalyst are provided.
    Type: Grant
    Filed: October 12, 2005
    Date of Patent: November 24, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: Mark K. Debe, Susan M. Hendricks, George D. Vernstrom, Alison K. Schmoeckel, Radoslav Atanasoski, Clayton V. Hamilton, Jr.