Patents by Inventor Guixan Hu

Guixan Hu 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).

  • Macrolide synthesis process and solid-state forms
    Patent number: 8518900
    Abstract: Described are methods for making macrolides, and, in particular, a method for making optionally substituted 20,23-dipiperidinyl-5-O-mycaminosyl-tylonolide and derivatives thereof, as well as uses of macrolides to make medicaments, methods of treatment using macrolides, and methods for making intermediates that, among other uses, may be used to make macrolides. Also described are solvated and non-solvated crystalline forms of 20,23-dipiperidinyl-5-O-mycaminosyl-tylonolide, as well as methods for making such crystalline forms, medicaments comprising (or derived from) such crystalline forms, methods for making medicaments comprising (or derived from) such crystalline forms, methods of treatment using such crystalline forms, and kits comprising such crystalline forms.
    Type: Grant
    Filed: January 26, 2012
    Date of Patent: August 27, 2013
    Assignee: Intervet International B.V.
    Inventors: Ralf Warrass, Fritz Blatter, Meinrad Brenner, Guixan Hu, Timo Rager
  • Macrolide synthesis process and solid-state forms
    Patent number: 8227429
    Abstract: This invention relates to a method for making macrolides, and, in particular, a method for making optionally substituted 20,23-dipiperidinyl-5-O-mycaminosyl-tylonolide and derivatives thereof, as well as uses of macrolides to make medicaments, methods of treatment using macrolides, and methods for making intermediates that, inter alia, may be used to make macrolides. This invention also relates to solvated and non-solvated crystalline forms of 20,23-dipiperidinyl-5-O-mycaminosyl-tylonolide, as well as methods for making such crystalline forms, medicaments comprising (or derived from) such crystalline forms, methods for making medicaments comprising (or derived from) such crystalline forms, methods of treatment using such crystalline forms, and kits comprising such crystalline forms.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: July 24, 2012
    Assignee: Intervet International B.V.
    Inventors: Ralf Warrass, Fritz Blatter, Meinrad Brenner, Guixan Hu, Tamo Rager
  • MACROLIDE SYNTHESIS PROCESS AND SOLID-STATE FORMS
    Publication number: 20120122808
    Abstract: Described are methods for making macrolides, and, in particular, a method for making optionally substituted 20,23-dipiperidinyl-5-O-mycaminosyl-tylonolide and derivatives thereof, as well as uses of macrolides to make medicaments, methods of treatment using macrolides, and methods for making intermediates that, among other uses, may be used to make macrolides. Also described are solvated and non-solvated crystalline forms of 20,23-dipiperidinyl-5-O-mycaminosyl-tylonolide, as well as methods for making such crystalline forms, medicaments comprising (or derived from) such crystalline forms, methods for making medicaments comprising (or derived from) such crystalline forms, methods of treatment using such crystalline forms, and kits comprising such crystalline forms.
    Type: Application
    Filed: January 26, 2012
    Publication date: May 17, 2012
    Applicant: INTERVET INTERNATIONAL B.V.
    Inventors: Ralf Warrass, Fritz Blatter, Meinrad Brenner, Guixan Hu, Timo Rager