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:
Nov. 25, 2008
Filed:
Apr. 03, 2001
Mitsuaki Kuwano, Ikoma, JP;
Masaki Nakagawa, Ikoma, JP;
Hiroshi Suhara, Osaka, JP;
Santen Pharmaceutical Co., Ltd., Osaka-shi, Osaka, JP;
Abstract
An object of the present invention is to prepare substances which are excellent in delivery and enable drugs to be retained in a body effectively over a long period and to construct a drug delivery system using the substances. When the delivering substance which is obtained by reacting polyalkylene glycol or a reactive derivative thereof, a phospholipid and a drug with each other to form covalent bonds is administered systemically or topically, the substance is retained at a target site in a body for a long period, thereby making it possible to sustain drug efficacy over a long period by a single administration.