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:
Jan. 24, 2006
Filed:
Dec. 22, 2000
Anastasios Melis, El Cerrito, CA (US);
Liping Zhang, Kensington, CA (US);
John R. Benemann, Walnut Creek, CA (US);
Marc Forestier, Lakewood, CO (US);
Maria Ghirardi, Lakewood, CO (US);
Michael Seibert, Lakewood, CO (US);
Anastasios Melis, El Cerrito, CA (US);
Liping Zhang, Kensington, CA (US);
John R. Benemann, Walnut Creek, CA (US);
Marc Forestier, Lakewood, CO (US);
Maria Ghirardi, Lakewood, CO (US);
Michael Seibert, Lakewood, CO (US);
Midwest Research Institute, Kansas City, MO (US);
Abstract
A reversible physiological process provides for the temporal separation of oxygen evolution and hydrogen production in a microorganism, which includes the steps of growing a culture of the microorganism in medium under illuminated conditions to accumulate an endogenous substrate, depleting from the medium a nutrient selected from the group consisting of sulfur, iron, and/or manganese, sealing the culture from atmospheric oxygen, incubating the culture in light whereby a rate of light-induced oxygen production is equal to or less than a rate of respiration, and collecting an evolved gas. The process is particularly useful to accomplish a sustained photobiological hydrogen gas production in cultures of microorganisms, such as