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:
Apr. 29, 2008
Filed:
Dec. 14, 2004
Applicants:
Roberto Giovanetti, Schio, IT;
Andrea Nicoli, Vicenza, IT;
Angelo Restelli, Gerenzano, IT;
Livius Cotarca, Cervignano del Friuli, IT;
Inventors:
Roberto Giovanetti, Schio, IT;
Andrea Nicoli, Vicenza, IT;
Angelo Restelli, Gerenzano, IT;
Livius Cotarca, Cervignano del Friuli, IT;
Assignee:
Zach System S.p.A., Bresso, Milan, IT;
Primary Examiner:
Int. Cl.
CPC ...
C07C 61/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A process for the preparation of gabapentin comprising the passage of a salt of the same through a ionic exchange resin of strong cationic type, the elution of the gabapentin which has fixed onto the column and the crystallization from organic solvent, characterized in that the resin is regenerated by using a mineral acid in a molar quantity between 50 and 90%, is described.