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:
Feb. 27, 2007
Filed:
Dec. 17, 2004
Applicants:
Egisto Boschetti, Croissy sur Seine, FR;
Luc Bourgeois, Bievres, FR;
Inventors:
Egisto Boschetti, Croissy sur Seine, FR;
Luc Bourgeois, Bievres, FR;
Assignee:
Ciphergen Biosystems Inc., Fremont, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 49/00 (2006.01); C12Q 1/68 (2006.01);
U.S. Cl.
CPC ...
Abstract
In relation to a chromatographic chip, for protein separation, a polymer surface is provided that has a first polymer layer, attached to a support surface, which can be anionic or cationic. To the first layer is attached a second polymer layer, characterized by an opposite charge.