Patents by Inventor Leonid Levenfeld

Leonid Levenfeld 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).

  • Solid state forms of ibrutinib
    Patent number: 10035802
    Abstract: The present invention encompasses solid state forms of Ibrutinib, including forms G, J and K, and pharmaceutical compositions thereof.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: July 31, 2018
    Assignee: TEVA PHARMACEUTICALS USA, INC.
    Inventors: Meital Cohen, Yuval Cohen, Ariel Mittelman, Elana Ben Moha-Lerman, Idit Tzanani, Leonid Levenfeld
  • SOLID STATE FORMS OF IBRUTINIB
    Publication number: 20170226114
    Abstract: The present invention encompasses solid state forms of Ibrutinib, including forms G, J and K, and pharmaceutical compositions thereof.
    Type: Application
    Filed: August 13, 2015
    Publication date: August 10, 2017
    Inventors: Meital Cohen, Yuval Cohen, Ariel Mittelman, Elana Ben Moha-Lerman, Idit Tzanani, Leonid Levenfeld
  • Process for preparing Cinacalcet
    Publication number: 20080146845
    Abstract: The invention provides a process for preparing Cinacalcet base in which a compound VI, having the structure: where X is C1-3 alkylsulfonate, substituted and non-substituted C6-10 aryl sulfonate or halogen, is reacted with (R)-1-Naphthylethylamine and, optionally, a base: 1) under minimal solvent conditions, 2) at a minimum temperature of about 100° C., preferably, greater than 121° C., and, more preferably, at a temperature of greater than 121° C. to about 130° C., and 3) under elevated pressure.
    Type: Application
    Filed: November 20, 2007
    Publication date: June 19, 2008
    Inventors: Boaz Gome, Leonid Levenfeld