Patents by Inventor David Dain

David Dain 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: 20220024885
    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: August 4, 2021
    Publication date: January 27, 2022
    Applicant: Supernus Pharmaceuticals, Inc.
    Inventors: Likan LIANG, Padmanabh P. BHATT, David DAIN, Jean-Philippe TAQUET, Aleksandr PECHENOV, Alexei TCHESNOKOV, Reynold MARIAUX
  • Publication number: 20190300492
    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: November 13, 2018
    Publication date: October 3, 2019
    Applicant: Supernus Pharmaceuticals, Inc.
    Inventors: Likan LIANG, Padmanabh P. BHATT, David DAIN, Jean-Philippe TAQUET, Aleksandr PECHENOV, Alexei TCHESNOKOV, Reynold MARIAUX
  • Patent number: 10160733
    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: May 24, 2018
    Date of Patent: December 25, 2018
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Likan Liang, Padmanabh P. Bhatt, David Dain, Jean-Philippe Taquet, Aleksandr Pechenov, Alexei Tchesnokov, Reynold Mariaux
  • Publication number: 20180265482
    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: May 24, 2018
    Publication date: September 20, 2018
    Applicant: Supernus Pharmaceuticals, Inc.
    Inventors: Likan LIANG, Padmanabh P. BHATT, David DAIN, Jean-Philippe TAQUET, Aleksandr PECHENOV, Alexei TCHESNOKOV, Reynold MARIAUX
  • Patent number: 10005743
    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: June 24, 2016
    Date of Patent: June 26, 2018
    Assignee: Supernus Pharmaceuticals, Inc.
    Inventors: Likan Liang, Padmanabh P. Bhatt, David Dain, Jean-Philippe Taquet, Aleksandr Pechenov, Alexei Tchesnokov, Reynold Mariaux
  • 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: 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
  • Publication number: 20140137463
    Abstract: High cell density fermentations of wild-type organisms can result in increased viscosity due to the production of exocellular polysaccharides. Mutant microorganisms with a dry morphology, resulting from reduced exocellular polysaccharide formation, were isolated and characterized. The exocellular polysaccharide composition for these modified microorganisms is shown to be different than the polysaccharide composition of the wild type microorganism. In addition to reduced exocellular polysaccharide formation, dry morphology mutants of multiple strains show reduced viscosity, improved oxygen mass transfer, and improved fatty acid fermentation yield on carbon.
    Type: Application
    Filed: April 9, 2013
    Publication date: May 22, 2014
    Applicant: BP Corporation North America Inc.
    Inventors: Kirk Apt, Jacob Borden, Paul W. Behrens, David Dain, Jon Hansen, Joseph W. Pfeifer
  • 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