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:
Aug. 14, 2001
Filed:
Aug. 14, 2000
Applicant:
Inventor:
Egidij Capuder, Krtina, SI;
Assignee:
LEK Pharmaceutical and Chemical Co. D. D., Ljubljana, SI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01N 4/300 ; C07D / ;
U.S. Cl.
CPC ...
A01N 4/300 ; C07D / ;
Abstract
Provided is a process for preparation and/or purification of clavulanic acid or a pharmaceutically acceptable salt or ester thereof including removing solids from a clavulanic acid containing fermentation broth by microfiltration to form a first filtrate, further removing solids from the first filtrate by ultrafiltration to form a second filtrate, concentrating the second filtrate by removal of water, and treating the concentrated second filtrate to isolate clavulanic acid or a pharmaceutically acceptable salt or ester thereof.