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. 15, 2011
Filed:
Nov. 03, 2004
Gregory Slobodkin, Huntsville, AL (US);
Majed Matar, Madison, AL (US);
Jason Fewell, Madison, AL (US);
Khursheed Anwer, Madison, AL (US);
Gregory Slobodkin, Huntsville, AL (US);
Majed Matar, Madison, AL (US);
Jason Fewell, Madison, AL (US);
Khursheed Anwer, Madison, AL (US);
EGEN, Inc., Huntsville, AL (US);
Abstract
A biodegradable cross-linked cationic multi-block copolymer of linear polyethylenimine (LPEI) wherein the LPEI blocks are linked together by hydrophilic linkers with a biodegradable disulfide bond and methods of making thereof. The biodegradable cross-linked cationic multi-block copolymer may also contain pendant functional moieties which are preferably receptor ligands, membrane permeating agents, endosomolytic agents, nuclear localization sequences, pH sensitive endosomolytic peptides, chromogenic or fluorescent dyes.