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:
Mar. 16, 2004
Filed:
May. 15, 2002
Applicant:
Inventors:
Vilmos Kéri, Debrecen, HU;
Ärvai Nagyné, Debrecen, HU;
Lajos Deák, Debrecen, HU;
Györgyné Makó, Debrecen, HU;
Istvánné Miskolczy, Debrecen, HU;
Assignee:
Biogal Gyogyszergyar Rt., Debrecen, HU;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 1/508 ;
U.S. Cl.
CPC ...
B01D 1/508 ;
Abstract
Object of the invention is a process for the chromatographic purification of cyclosporin A from a crude product containing cyclosporin complex by using a column filled with silica gel and by the application of multistep chromatography with a column filled with normal phase silica gel and by a solvent mixture containing toluene as the major component.