Patents by Inventor Likan Liang

Likan Liang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7022337
    Abstract: A fibrate self-emulsifying oral formulation with improved bioavailability when compared to commercially available formulations containing a therapeutically effective dose of fenofibrate, derivative of fenofibrate or mixtures thereof dissolved in a fibrate solubilizer selected from N-alkyl derivative of 2-pyrrolidone, mono- or di- or polyethylene glycol monoethers, C8-12 fatty acid mono- or di-esters of propylene glycol, or combinations thereof, one or more surfactants and optionally one or more stabilizers useful in the treatment of hypercholesterolaemia or hypertriglyceridaemia in mammals in the fed or fasted state.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: April 4, 2006
    Assignee: Shire Laboratories, Inc.
    Inventors: Likan Liang, Amir H. Shojaei, Scott A. Ibrahim, Beth A. Burnside
  • Publication number: 20050191343
    Abstract: The present invention is directed to reverse micellar formulations for the delivery of hydrophobic or lipophilic compounds, particularly therapeutic compounds.
    Type: Application
    Filed: November 24, 2004
    Publication date: September 1, 2005
    Applicant: Shire Laboratories, Inc.
    Inventor: Likan Liang
  • Publication number: 20050079145
    Abstract: The invention relates to compositions and methods for drug delivery suitable for promoting the transmucosal absorption of drugs, especially drugs with poor intrinsic bioavailability, such as peptides, proteins, vaccines, and nucleic acids. The delivery system of this invention preferably comprises fatty acid esters and their hydrophilic derivatives that associate with water and other polar solvents to form reverse micelles tha are physically stabilized in the presence of gastrointestinal fluid, water, and other hydrophilic solvents. Such stable reverse micelles are formed by suitable mixtures of polymeric or non-polymeric compounds with amphiphiles. Micelles made using these methods undergo phase transformation more slowly resulting in delayed drug release profiles and sustained absorption.
    Type: Application
    Filed: December 3, 2002
    Publication date: April 14, 2005
    Inventors: Panayiotis Constantinides, Likan Liang, Eun-Hyun Jang
  • Publication number: 20040110842
    Abstract: A fibrate self-emulsifying oral formulation with improved bioavailability when compared to commercially available formulations containing a therapeutically effective dose of fenofibrate, derivative of fenofibrate or mixtures thereof dissolved in a fibrate solubilizer selected from N-alkyl derivative of 2-pyrrolidone, mono- or di- or polyethylene glycol monoethers, C8-12 fatty acid mono- or di-esters of propylene glycol, or combinations thereof, one or more surfactants and optionally one or more stabilizers useful in the treatment of hypercholesterolaemia or hypertriglyceridaemia in mammals in the fed or fasted state.
    Type: Application
    Filed: June 27, 2003
    Publication date: June 10, 2004
    Inventors: Likan Liang, Amir H. Shojaei, Scott A. Ibrahim, Beth A. Burnside
  • Patent number: 6511677
    Abstract: The invention relates to an oral drug delivery system which delivers biologically active substances to the mucosal tissue of the intestine utilizing novel polymerized liposomes. Novel polymerizable fatty acids having a polymerizable group, a surfactant group, and a functional group, and optionally coupled to ligands which target mucosal tissue in the intestine are disclosed. Novel negatively charged polymerizable lipids which have phosphatidyl inositol (PI), phosphatidyl glycerol (PG) or phosphatidyl serine (PS) groups on a polymerizable backbone are also described.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: January 28, 2003
    Assignee: Orasomol Technologies, Inc.
    Inventors: Robert N Brey, Likan Liang
  • Patent number: 6500453
    Abstract: The invention relates to an oral drug delivery system which delivers biologically active substances to the mucosal tissue of the intestine utilizing novel polymerized liposomes. Novel polymerizable fatty acids having a polymerizable group, a surfactant group, and a functional group, and optionally coupled to ligands which target mucosal tissue in the intestine are disclosed. Novel negatively charged polymerizable lipids which have phosphatidyl inositol (PI), phosphatidyl glycerol (PG) or phosphatidyl serine (PS) groups on a polymerizable backbone are also described.
    Type: Grant
    Filed: December 13, 2001
    Date of Patent: December 31, 2002
    Assignee: Orasomol Technologies, Inc.
    Inventors: Robert N Brey, Likan Liang
  • Publication number: 20020041861
    Abstract: The invention relates to an oral drug delivery system which delivers biologically active substances to the mucosal tissue of the intestine utilizing novel polymerized liposomes. Novel polymerizable fatty acids having a polymerizable group, a surfactant group, and a functional group, and optionally coupled to ligands which target mucosal tissue in the intestine are disclosed. Novel negatively charged polymerizable lipids which have phosphatidyl inositol (PI), phosphatidyl glycerol (PG) or phosphatidyl serine (PS) groups on a polymerizable backbone are also described.
    Type: Application
    Filed: December 13, 2001
    Publication date: April 11, 2002
    Applicant: Orasomal Technologies, Inc.
    Inventors: Robert N. Brey, Likan Liang
  • Patent number: 6187335
    Abstract: The invention relates to an oral drug delivery system which delivers biologically active substances to the mucosal tissue of the intestine utilizing novel polymerized liposomes. Novel polymerizable fatty acids having a polymerizable group, a surfactant group, and a functional group, and optionally coupled to ligands which target mucosal tissue in the intestine are disclosed. Novel negatively charged polymerizable lipids which have phosphatidyl inositol (PI), phosphatidyl glycerol (PG) or phosphatidyl serine (PS) groups on a polymerizable backbone are also described.
    Type: Grant
    Filed: December 31, 1997
    Date of Patent: February 13, 2001
    Assignee: Orasomal Technologies, Inc.
    Inventors: Robert N Brey, Likan Liang