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:
Aug. 11, 2026
Filed:
Jun. 23, 2017
Applicant:
Universitetet I Oslo, Oslo, NO;
Inventors:
Assignee:
Universitetet i Oslo, Oslo, NO;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C04B 28/10 (2006.01); C04B 14/06 (2006.01); C12N 1/20 (2006.01); C04B 111/00 (2006.01);
U.S. Cl.
CPC ...
C04B 28/10 (2013.01); C04B 14/06 (2013.01); C12N 1/20 (2013.01); C04B 2111/00646 (2013.01);
Abstract
The present invention is directed to methods of preparing biocement. The methods disclosed herein employ microbial or enzymatic means first to generate acid which dissolves CaCO, and then to degrade urea, producing COions which increase the pH and lead to the reprecipitation of CaCO. The precipitation of CaCOacts as a cementation process which can bind together particulate materials to yield mortars, concretes and suchlike. The invention further provides construction materials formed by the methods of the invention, and bacterial strains which can be used in the methods of the invention to generate organic acids.