Patents by Inventor Shlomit Wizel

Shlomit Wizel 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).

  • Methods for the preparation of mirtazapine intermediates
    Publication number: 20020165238
    Abstract: The preparation of 1-(3-carboxypyridyl-2)-4-methyl-2-phenylpiperazine dihydrate and other mirtazapine intermediates are described. These compounds are particularly useful in the preparation of mirtazapine.
    Type: Application
    Filed: February 14, 2002
    Publication date: November 7, 2002
    Inventors: Leonid Metzger, Shlomit Wizel
  • Crystalline venlafaxine base and novel polymorphs of venlafaxine hydrochlorid, processes for preparing thereof
    Publication number: 20020143211
    Abstract: The present invention relates to novel essentially pure venlafaxine and the process of preparation thereof. The present invention also relates to novel solvate forms of venlafaxine hydrochloride and the process of preparation thereof. Furthermore, the present invention provides a novel process for preparing venlafaxine hydrochloride from venlafaxine; the process comprises the steps of: I) preparing a mixture of venlafaxine with acetone; and ii) exposing the mixture in gaseous hydrochloric acid.
    Type: Application
    Filed: October 19, 2001
    Publication date: October 3, 2002
    Inventors: Ben-Zion Dolitzky, Judith Aronhime, Shlomit Wizel, Gennady Nisnevish