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:
Sep. 25, 2007
Filed:
May. 19, 2003
Igor V. Zhigaltsev, Vancouver, CA;
Kim F. Wong, Vancouver, CA;
Norbert Maurer, Vancouver, CA;
Pieter R. Cullis, Vancouver, CA;
Igor V. Zhigaltsev, Vancouver, CA;
Kim F. Wong, Vancouver, CA;
Norbert Maurer, Vancouver, CA;
Pieter R. Cullis, Vancouver, CA;
University of British Columbia, Vancouver, CA;
Abstract
Methods and compositions for triggering the delivery of an encapsulated therapeutic agent from a liposome are provided. Liposomes of opposite charge and incorporating lipids which favor non-lamellar structures are contacted in vivo. At least one of the liposome encapsulates at least one therapeutic drug or agent. Preferably, the liposomes have a fusogenic hydrophillic coating, such as PEG to control the rate of interaction of the liposomes and release of the therapeutic agent.