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:
Sep. 07, 2010
Filed:
Apr. 02, 2008
Applicants:
Dhanpat Rai, Yachats, OR (US);
Robert C. Moore, Edgewood, NM (US);
Mark D. Tucker, Albuquerque, NM (US);
Inventors:
Dhanpat Rai, Yachats, OR (US);
Robert C. Moore, Edgewood, NM (US);
Mark D. Tucker, Albuquerque, NM (US);
Assignee:
Sandia Corporation, Albuquerque, NM (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C09K 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of purifying isosaccharinate by mixing sodium carbonate, potassium carbonate, sodium hydroxide or potassium hydroxide with calcium isosaccharinate, removing the precipitated calcium carbonate and adjusting the pH to between approximately 4.5 to 5.0 thereby removing excess carbonate and hydroxide to provide an acidic solution containing isosaccharinate.