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: 9562011
    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: Grant
    Filed: January 29, 2015
    Date of Patent: February 7, 2017
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Martin Hanbauer, Zarghun Nazir, Peter Hildebrand, Attilia Figini, Likan Liang, Tiziano Fumagalli
  • Patent number: 9555004
    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: February 24, 2015
    Date of Patent: January 31, 2017
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Likan Liang, Hua Wang, Padmanabh P. Bhatt, Michael L. Vieira
  • Patent number: 9549940
    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: September 8, 2016
    Date of Patent: January 24, 2017
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Likan Liang, Hua Wang, Padmanabh P. Bhatt, Michael L. Vieira
  • Publication number: 20160375047
    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: September 8, 2016
    Publication date: December 29, 2016
    Applicant: Supernus Pharmaceuticals, Inc.
    Inventors: Likan LIANG, Hua WANG, Padmanabh P. BHATT, Michael L. VIEIRA
  • Publication number: 20160375048
    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: September 8, 2016
    Publication date: December 29, 2016
    Applicant: Supernus Pharmaceuticals, Inc.
    Inventors: Likan LIANG, Hua WANG, Padmanabh P. BHATT, Michael L. VIEIRA
  • Publication number: 20160304475
    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: June 24, 2016
    Publication date: October 20, 2016
    Applicant: Supernus Pharmaceuticals, Inc.
    Inventors: Likan LIANG, Padmanabh P. BHATT, David DAIN, Jean-Philippe TAQUET, Aleksandr PECHENOV, Alexei TCHESNOKOV, Reynold MARIAUX
  • Patent number: 9434703
    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: Grant
    Filed: December 19, 2014
    Date of Patent: September 6, 2016
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Likan Liang, Padmanabh P. Bhatt, David Dain, Jean-Philippe Taquet, Aleksandr Pechenov, Alexei Tchesnokov, Reynold Mariaux
  • Patent number: 9403783
    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: Grant
    Filed: April 12, 2011
    Date of Patent: August 2, 2016
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Likan Liang, Padmanabh P. Bhatt, David Dain, Jean-Philippe Taquet, Aleksandr Pechenov, Alexei Tchesnokov, Reynold Mariaux
  • Publication number: 20160022596
    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: February 24, 2015
    Publication date: January 28, 2016
    Applicant: Supernus Pharmaceuticals, Inc.
    Inventors: Likan Liang, Hua WANG, Padmanabh P. BHATT, Michael L. VIEIRA
  • Publication number: 20150141645
    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: January 29, 2015
    Publication date: May 21, 2015
    Inventors: Martin HANBAUER, Zarghun NAZIR, Peter HILDEBRAND, Attilia FIGINI, Likan LIANG, Tiziano FUMAGALLI
  • Publication number: 20150126735
    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: December 19, 2014
    Publication date: May 7, 2015
    Applicant: Supernus Pharmaceuticals Inc.
    Inventors: Likan Liang, Padmanabh P. Bhatt, David Dain, Jean-Philippe Taquet, Aleksandr Pechenov, Alexei Tchesnokov, Reynold Mariaux
  • Patent number: 8992989
    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: September 29, 2014
    Date of Patent: March 31, 2015
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Likan Liang, Hua Wang, Padmanabh P. Bhatt, Michael L. Vieira
  • Publication number: 20150086629
    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: April 25, 2014
    Publication date: March 26, 2015
    Applicant: Supernus Pharmaceuticals, Inc.
    Inventors: Rong-Kun Chang, Michael L. Vieira, Likan LIANG, Padmanabh P. BHATT, Austin B. HUANG, Sachin V. PATEL
  • Patent number: 8957206
    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: Grant
    Filed: March 15, 2013
    Date of Patent: February 17, 2015
    Assignee: Supernus Pharmaceuticals Inc.
    Inventors: Martin Hanbauer, Zarghun Nazir, Peter Hildebrand, Attilia Figini, Likan Liang, Tiziano Fumagalli
  • Publication number: 20150024055
    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: October 6, 2014
    Publication date: January 22, 2015
    Applicant: Supernus Pharmaceuticals, Inc.
    Inventors: Likan Liang, Padmanabh P. BHATT, Hua WANG
  • Publication number: 20150017249
    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: September 29, 2014
    Publication date: January 15, 2015
    Applicant: Supernus Pharmaceuticals, Inc.
    Inventors: Likan Liang, Hua WANG, Padmanabh P. BHATT, Michael L. VIEIRA
  • Patent number: 8889191
    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: November 18, 2014
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Likan Liang, Hua Wang, Padmanabh P. Bhatt, Michael L. Vieira
  • Patent number: 8877248
    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: July 14, 2014
    Date of Patent: November 4, 2014
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Likan Liang, Hua Wang, Padmanabh P. Bhatt, Michael L. Vieira
  • Publication number: 20140322343
    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: July 14, 2014
    Publication date: October 30, 2014
    Inventors: Likan Liang, Hua Wang, Padmanabh P. Bhatt, Michael L. Vieira
  • Patent number: 8748472
    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: Grant
    Filed: March 30, 2011
    Date of Patent: June 10, 2014
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Rong-Kun Chang, Michael L. Vieira, Likan Liang, Padmanabh P. Bhatt, Austin B. Huang, Sachin V. Patel