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, 2003
Filed:
Jan. 08, 1998
Applicant:
Inventors:
Eric J. Beckman, Edgewood, PA (US);
Eliador J. Ghenciu, Pittsburgh, PA (US);
Nathaniel T. Becker, Burlingame, CA (US);
Landon M. Steele, Brisbane, CA (US);
Alan J. Russell, Wexford, PA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A23J 1/00 ; C07K 1/00 ; C12N 9/00 ; C12N 9/48 ; C12P 1/00 ;
U.S. Cl.
CPC ...
A23J 1/00 ; C07K 1/00 ; C12N 9/00 ; C12N 9/48 ; C12P 1/00 ;
Abstract
There is provided a process for the extraction of water soluble biomaterials such as enzymes or proteins into carbon dioxide utilizing certain carbon dioxide-soluble surfactants. Also provided are certain carbon dioxide-soluble surfactants useful in the extraction of proteins. The surfactants are selected from fluoroether sulfate, fluoroether-polyethylene glycol block copolymer, fluoroether-functional sorbitol, and fluoroether dithiocarbamate chelate.