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).

  • Publication number: 20140081020
    Abstract: The present invention is directed towards novel methods of synthesis of molindone, synthesis of the intermediates of molindone, and high-purity compositions of molindone. In particular, the invention relates to the methods of synthesis of molindone through the Mannich reaction.
    Type: Application
    Filed: March 15, 2013
    Publication date: March 20, 2014
    Inventors: Martin Hanbauer, Zarghun Nazir, Peter Hildebrand, Attilia Figini, Likan Liang, Tiziano Fumagalli
  • Patent number: 8663683
    Abstract: Pharmaceutical compositions of topiramate for once-a-day oral administration are provided. The formulations comprise a sustained-release component and an optional immediate-release component, the compositions of which can be selectively adjusted, respectively, to release the active ingredient along a pre-determined release profile. Method of treating or preventing pathological disorders in mammalian subjects comprising the administration of the novel formulations disclosed herein is also provided.
    Type: Grant
    Filed: August 27, 2012
    Date of Patent: March 4, 2014
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Likan Liang, Hua Wang, Padmanabh P. Bhatt, Michael L. Vieira
  • Publication number: 20140037745
    Abstract: The present invention is directed to oral pulse-release pharmaceutical dosage form containing an immediate release component of gamma-hydroxybutyric acid, and one or more delayed/controlled release components of gamma-hydroxybutyric acid.
    Type: Application
    Filed: September 24, 2013
    Publication date: February 6, 2014
    Applicant: Supernus Pharmaceuticals, Inc.
    Inventors: Likan Liang, Niraj Shah, Padmanabh P. Bhatt, Scott Ibrahim
  • Patent number: 8598191
    Abstract: The present invention is directed to oral pulse-release pharmaceutical dosage form containing an immediate release component of gamma-hydroxybutyric acid, and one or more delayed/controlled release components of gamma-hydroxybutyric acid.
    Type: Grant
    Filed: May 21, 2012
    Date of Patent: December 3, 2013
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Likan Liang, Niraj Shah, Padmanabh P. Bhatt, Scott Ibrahim
  • Patent number: 8535650
    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 that 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: Grant
    Filed: December 3, 2002
    Date of Patent: September 17, 2013
    Assignee: Soligenix, Inc.
    Inventors: Panayiotis P. Constantinides, Likan Liang, Eun-Hyun Jang
  • Publication number: 20120321708
    Abstract: Pharmaceutical compositions of topiramate for once-a-day oral administration are provided. The formulations comprise a sustained-release component and an optional immediate-release component, the compositions of which can be selectively adjusted, respectively, to release the active ingredient along a pre-determined release profile. Method of treating or preventing pathological disorders in mammalian subjects comprising the administration of the novel formulations disclosed herein is also provided.
    Type: Application
    Filed: August 27, 2012
    Publication date: December 20, 2012
    Inventors: Likan Liang, Hua Wang, Padmanabh P. Bhatt, Michael L. Vieira
  • Patent number: 8298580
    Abstract: Pharmaceutical compositions of topiramate for once-a-day oral administration are provided. The formulations comprise a sustained-release component and an optional immediate-release component, the compositions of which can be selectively adjusted, respectively, to release the active ingredient along a pre-determined release profile. Method of treating or preventing pathological disorders in mammalian subjects comprising the administration of the novel formulations disclosed herein is also provided.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: October 30, 2012
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Likan Liang, Hua Wang, Padmanabh P. Bhatt, Michael L. Vieira
  • Patent number: 8298576
    Abstract: Pharmaceutical compositions of topiramate for once-a-day oral administration are provided. The formulations comprise a sustained-release component and an optional immediate-release component, the compositions of which can be selectively adjusted, respectively, to release the active ingredient along a pre-determined release profile. Method of treating or preventing pathological disorders in mammalian subjects comprising the administration of the novel formulations disclosed herein is also provided.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: October 30, 2012
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Likan Liang, Hua Wang, Padmanabh P. Bhatt, Michael L. Vieira
  • Publication number: 20120231085
    Abstract: The present invention is directed to oral pulse-release pharmaceutical dosage form containing an immediate release component of gamma-hydroxybutyric acid, and one or more delayed/controlled release components of gamma-hydroxybutyric acid.
    Type: Application
    Filed: May 21, 2012
    Publication date: September 13, 2012
    Inventors: Likan Liang, Niraj Shah, Padmanabh P. Bhatt, Scott Ibrahim
  • Patent number: 8193211
    Abstract: The present invention is directed to oral pulse-release pharmaceutical dosage form containing an immediate release component of gamma-hydroxybutyric acid, and one or more delayed/controlled release components of gamma-hydroxybutyric acid.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: June 5, 2012
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Likan Liang, Niraj Shah, Padmanabh P. Bhatt, Scott Ibrahim
  • Publication number: 20110287099
    Abstract: Pharmaceutical compositions of topiramate for once-a-day oral administration are provided. The formulations comprise a sustained-release component and an optional immediate-release component, the compositions of which can be selectively adjusted, respectively, to release the active ingredient along a pre-determined release profile. Method of treating or preventing pathological disorders in mammalian subjects comprising the administration of the novel formulations disclosed herein is also provided.
    Type: Application
    Filed: December 17, 2010
    Publication date: November 24, 2011
    Inventors: Likan Liang, Hua Wang, Padmanabh P. Bhatt, Michael L. Vieira
  • Publication number: 20110287103
    Abstract: Pharmaceutical compositions of topiramate for once-a-day oral administration are provided. The formulations comprise a sustained-release component and an optional immediate-release component, the compositions of which can be selectively adjusted, respectively, to release the active ingredient along a pre-determined release profile. Method of treating or preventing pathological disorders in mammalian subjects comprising the administration of the novel formulations disclosed herein is also provided.
    Type: Application
    Filed: December 17, 2010
    Publication date: November 24, 2011
    Inventors: Likan Liang, Hua Wang, Padmanabh P. Bhatt, Michael L. Vieira
  • Publication number: 20110251198
    Abstract: Provided here are methods of manufacture of viloxazine and its various salts, as well as viloxazine-related compounds, such as novel intermediate reaction products and polymorphs thereof. In particular, the methods provide a substantially pure API of viloxazine HCl while avoiding undesirable impurities. The methods further provide for separating, identifying, and characterizing novel polymorphs of viloxazine. Further provided are methods for synthesis and identification and characterization of novel intermediates of viloxazine, as well as for some important metabolites and precursors of metabolites of viloxazine.
    Type: Application
    Filed: April 12, 2011
    Publication date: October 13, 2011
    Applicant: Supernus Pharmaceuticals Inc.
    Inventors: Likan Liang, Padmanabh P. Bhatt, David Dain, Jean-Philippe Taquet, Aleksandr Pechenov, Alexei Tchesnokov, Reynold Mariaux
  • Publication number: 20110244042
    Abstract: Formulations of molindone having superior stability and methods of administering same are provided. The formulations may be immediate, modified, or otherwise delayed release formulations of molindone.
    Type: Application
    Filed: March 30, 2011
    Publication date: October 6, 2011
    Inventors: Rong-Kun CHANG, Michael L. Vieira, Likan Liang, Padmanabh P. Bhatt, Austin B. Huang, Sachin V. Patel
  • Publication number: 20100209489
    Abstract: Controlled release formulations of active compounds with pH-dependent solubility are provided. The formulations comprise solubility modulators which minimize the influence of environment on the solubility of the active compounds.
    Type: Application
    Filed: February 2, 2010
    Publication date: August 19, 2010
    Inventors: Likan Liang, Padmanabh P. Bhatt, Hua Wang
  • Publication number: 20080131501
    Abstract: The present invention provides enhanced immediate release formulations of topiramate, in which 80% of the active ingredient is released in the period of time of not more than 30 min. These formulations may be advantageously used for the treatment of acute neurological conditions, such as migraine.
    Type: Application
    Filed: December 4, 2007
    Publication date: June 5, 2008
    Inventors: Likan Liang, Padmanabh P. Bhatt, Hua Wang
  • Publication number: 20080118557
    Abstract: Pharmaceutical compositions of topiramate for once-a-day oral administration are provided. The formulations comprise a sustained-release component and an optional immediate-release component, the compositions of which can be selectively adjusted, respectively, to release the active ingredient along a pre-determined release profile. Method of treating or preventing pathological disorders in mammalian subjects comprising the administration of the novel formulations disclosed herein is also provided.
    Type: Application
    Filed: November 16, 2007
    Publication date: May 22, 2008
    Inventors: Likan Liang, Hua Wang, Padmanabh P. Bhatt, Michael L. Vieira
  • Publication number: 20060210630
    Abstract: The present invention is directed to oral pulse-release pharmaceutical dosage form containing an immediate release component of gamma-hydroxybutyric acid, and one or more delayed/controlled release components of gamma-hydroxybutyric acid.
    Type: Application
    Filed: September 30, 2005
    Publication date: September 21, 2006
    Inventors: Likan Liang, Niraj Shah, Padmanabh Bhatt, Scott Ibrahim
  • Publication number: 20060104997
    Abstract: The present invention relates to pharmaceutical compositions and methods for the mucosal and oral administration of monoterpenes and derivatives thereof. The compositions of this invention further comprise one or more surfactants and cosolvents and are in the form of self-emulsifying compositions. The compositions of the invention may further comprise water-insoluble therapeutic agents, vaccines and diagnostics. Such agents include but are not limited to taxanes, steroids, topoisomerase inhibitors such as etoposide and other water-insoluble or lipophilic drugs.
    Type: Application
    Filed: December 11, 2002
    Publication date: May 18, 2006
    Inventors: Panayiotis Constantinides, Reena Patil, Elijah Bolotin, Likan Liang
  • Publication number: 20060078618
    Abstract: The present invention relates to formulations and methods for the mucosal and parenteral administration of lipid particles an suspensions. The formulations of this invention are stable lipid particles useful for oral delivery of water-insoluble therapeutic agents, vaccines and diagnostics. The compositions of this invention promote the mucosal absorption of biologically active molecules across mucosal epithelial barriers. Stabilization of lipid particles is achieved by coating the hydrophobic central core with a polymer shell. The polymer shell can include bioadhesive agents, ligands, and absorption promoting agents. This invention relates to oral drug delivery systems for hydrophobic drugs, and in particular is concerned with improving the bioavailability of hydrophobic drugs from such systems. Using this system, anticancer drugs such as taxanes are orally effective.
    Type: Application
    Filed: December 11, 2002
    Publication date: April 13, 2006
    Inventors: Panayiotis Constantinides, Reena Patil, Likan Liang