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:
Dec. 27, 1994
Filed:
Jun. 22, 1993
Applicant:
Inventors:
Hiroshi Kikuchi, Tokyo, JP;
Kiyoto Yachi, Tokyo, JP;
Hiromi Morita, Tokyo, JP;
Sadao Hirota, Tokyo, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; B01J / ; B01J / ;
U.S. Cl.
CPC ...
424450 ; 264-41 ; 264-43 ;
Abstract
A method of producing liposomal products which comprises treating a positively or negatively charged, freeze- or spray-dried liposomal preparation with an aqueous solution of a drug charged oppositely to the charge of the liposomes.