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.

Date of Patent:
Jun. 05, 2012

Filed:

Feb. 19, 2003
Applicants:

Frank Essler, Halle, DE;

Steffen Panzner, Halle, DE;

Gerold Endert, Halle, DE;

Inventors:

Frank Essler, Halle, DE;

Steffen Panzner, Halle, DE;

Gerold Endert, Halle, DE;

Assignee:

Marina Biotech, Inc., Bothell, WA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
A61K 9/127 (2006.01);
U.S. Cl.
CPC ...
Abstract

The invention suggests a pH-sensitive cationic lipid with a pKvalue between 3.5 and 8, according to the general formulacation-spacer-Y-spacer-X-lipid,wherein Y and X represent linking groups. Furthermore, liposomes are described, which liposomes include said optionally cationic lipids.


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