Patents by Inventor Robert Koprowski

Robert Koprowski 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).

  • Process for preparation of hydrates of olanzapine and their conversion into crystalline forms of olanzapine
    Publication number: 20040067936
    Abstract: The present invention relates to a method for the preparation of hydrates of 2-methyl-4-(4-methyl-1-piperazinyl)-10H-thieno [2,3-b] [1,5] benzodiazepine (hereinafter referred to as Olanzapine). The present invention also relates to a process for conversion of these hydrates into a pure crystalline form of olanzapine referred to as form-I. The present invention also relates to a method of converting Olanzapine Form-2 to Form-1.
    Type: Application
    Filed: November 20, 2003
    Publication date: April 8, 2004
    Inventors: Buchi Reddy Reguri, Ramesh Chakka, Robert Koprowski