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:
May. 22, 2012
Filed:
Jul. 22, 2005
Applicants:
Daniel W. Armstrong, Ames, IA (US);
Jared Anderson, Ames, IA (US);
Inventors:
Daniel W. Armstrong, Ames, IA (US);
Jared Anderson, Ames, IA (US);
Assignee:
Sigma-Aldrich Co. LLC, St. Louis, MO (US);
Primary Examiner:
Int. Cl.
CPC ...
B01D 53/02 (2006.01); C07D 233/00 (2006.01); C07D 207/18 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to diionic liquid salts of dicationic or dianionic molecules, as well as solvents comprising diionic liquids and the use of diionic liquids as the stationary phase in a gas chromatographic column.