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:
Jan. 21, 2004
Applicants:
Anastasios Melis, El Cerrito, CA (US);
Hsu-ching Chen Wintz, El Cerrito, CA (US);
Inventors:
Anastasios Melis, El Cerrito, CA (US);
Hsu-Ching Chen Wintz, El Cerrito, CA (US);
Assignee:
The Regents of the University of California, Oakland, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12P 3/00 (2006.01); C12N 1/12 (2006.01); C12N 9/00 (2006.01); C12N 15/09 (2006.01); C12N 15/00 (2006.01); C12N 15/74 (2006.01); C07H 21/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
Sustained hydrogen production is obtained by the culturing of a genetically-modified algae, where the ability of the chloroplasts to intake sulfate is reduced or eliminated compared to wild-type algae. The alga is cultured in a sealed environment in a liquid or solid medium that contains sulfur, and hydrogen is generated continuously. Alternatively, the algae may be cultured in the presence of bacteria that also produce hydrogen gas. The hydrogen produced can be collected and used as a clean energy source.