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:
Oct. 28, 1997
Filed:
Dec. 21, 1995
Applicant:
Inventors:
Stephen Harrison, Shawinigan, CA;
Robert L Clarke, Orinda, CA (US);
Robert Scannell, Darmstadt, DE;
Bernd Busse, Darmstadt, DE;
Assignee:
Hydro-Quebec, Montreal, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25B / ;
U.S. Cl.
CPC ...
205445 ; 205457 ; 2042 / ; 2042 / ;
Abstract
A bipolar electrode useful in bipolar cell stack electrochemical cells where one of the electrode surfaces is patterned with active and relatively inactive areas where the surface area ratio of the active areas of the electrode surface to the total electrode surface is between 1:2 and 1:50. The use of a grid-like pattern of electrocatalytic material over a conductive substrate is preferred. The electrodes can be used for certain redox reactions to favor particular reaction products.