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:
Apr. 01, 2003
Filed:
Nov. 28, 2000
Applicant:
Inventors:
J. David Genders, Marilla, NY (US);
Ram Gopal, Williamsville, NY (US);
Dan M. Hartsough, Clarence, NY (US);
Peter M. Kendall, Amherst, NY (US);
William J. Long, Charlottle, NC (US);
Duane J. Mazur, Amherst, NY (US);
Guillermo D. Zappi, Amherst, NY (US);
Assignee:
The Electrosynthesis Company, Inc., Lancaster, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 1/504 ; B01D 6/142 ; C12P 7/40 ; C12P 7/58 ; C12P 7/60 ;
U.S. Cl.
CPC ...
B01D 1/504 ; B01D 6/142 ; C12P 7/40 ; C12P 7/58 ; C12P 7/60 ;
Abstract
A process for purifying and concentrating a gluconic acid derivative, such as 2-keto-L-gulonic acid, comprising introducing a non-viable and/or acidified fermentation medium or an in-vitro reactor medium comprising at least the gluconic acid derivative and/or salt thereof to electrodialysis thereby purifying and concentrating the gluconic acid derivative.