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:
Jul. 03, 2007
Filed:
Aug. 13, 2004
Applicants:
Wen Jiang, Umea, SE;
Knut Irgum, Bullmark, SE;
Inventors:
Wen Jiang, Umea, SE;
Knut Irgum, Bullmark, SE;
Assignee:
Sequant AB, Umea, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D 3/02 (2006.01); B32B 5/16 (2006.01); B05D 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A porous silica particle suitable can be used in zwitterionic high performance liquid chromatography. The particle comprises covalently bound zwitterionic groups grafted through a polymerization reaction. A hydrophilic column packing material suitable for use as a stationary phase in zwitterionic high performance liquid chromatography may comprise porous silica particles. The particles may comprise covalently bound zwitterionic groups. Methods for manufacturing and applying the silica particles exist.