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:
Feb. 13, 2007
Filed:
May. 01, 2003
Srinivasan Venkatesan, Southfield, MI (US);
Hong Wang, Troy, MI (US);
Subhash K. Dhar, Bloomfield, MI (US);
Stanford R. Ovshinsky, Bloomfield Hills, MI (US);
Srinivasan Venkatesan, Southfield, MI (US);
Hong Wang, Troy, MI (US);
Subhash K. Dhar, Bloomfield, MI (US);
Stanford R. Ovshinsky, Bloomfield Hills, MI (US);
Ovonic Fuel Cell Company LLC, Rochester Hills, MI (US);
Abstract
A method and system for electrochemically purifying an impure stream of hydrogen. Hydrogen is absorbed into a gas diffusion anode from the impure hydrogen stream and oxidized to form hydrogen ions and electrons which are released into an alkaline solution. An electrolytic cathode also positioned in the alkaline solution decomposes water to form hydrogen and hydroxyl ions which combine with the hydrogen ions to maintain equilibrium of the system.