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:
May. 14, 2002
Filed:
Apr. 06, 2001
Applicant:
Inventor:
Phillip J. Anevski, St. Louis, MO (US);
Assignee:
Ben Venue Laboratories, Inc., Bedford, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C11B 3/10 ;
U.S. Cl.
CPC ...
C11B 3/10 ;
Abstract
A process for purifying a non-ionic surfactant or solvent capable of dispersing and solubilizing a pharmaceutical compound. In the process, a solution of solvent and alcohol is contacted with an activated carbon column and an ion exchange resin column. The process is particularly adapted to the purification of polyethoxylated castor oils. The purified solvent is useful in the preparation of pharmaceutic compositions having enhance shelf life, such as for use with paclitaxel.