Patents by Inventor Bruno Konrad Radatus

Bruno Konrad Radatus 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).

  • PREPARATION OF OSELTAMIVIR PHOSPHATE (TAMIFLU®) AND INTERMEDIATES STARTING FROM D-GLUCOSE OR D-XYLOSE
    Publication number: 20110040120
    Abstract: Novel processes for the preparation of the anti-viral agent, Oseltamivir Phosphate and novel intermediates prepared in such processes. The novel processes use as starting materials D-glucose or D-xylose in the preparation of Oseltamivir Phosphate.
    Type: Application
    Filed: October 21, 2010
    Publication date: February 17, 2011
    Applicant: APOTEX PHARMACHEM INC.
    Inventors: Bruno Konrad RADATUS, K.S. Keshava MURTHY, Gamini WEERATUNGA, Stephen E. HORNE, Kiran Kumar KOTHAKONDA, Eckardt C.G. WOLF, Zhongyi WANG
  • Preparation of oseltamivir phosphate (Tamiflu) and intermediates starting from D-glucose or D-xylose
    Publication number: 20080009639
    Abstract: Novel processes for the preparation of the anti-viral agent, Oseltamivir Phosphate and novel intermediates prepared in such processes. The novel processes use as starting materials D-glucose or D-xylose in the preparation of Oseltamivir Phosphate.
    Type: Application
    Filed: February 23, 2007
    Publication date: January 10, 2008
    Inventors: Bruno Konrad Radatus, K.S. Keshava Murthy, Gamini Weeratunga, Stephen E. Horne, Kiran Kumar Kothakonda, Eckardt C.G. Wolf, Zhongyi Wang
  • Process for the manufacture of related intermediates including cistofur
    Patent number: 5750714
    Abstract: A process of manufacture of:R--CH.sub.2 --S--CH.sub.2 --CH.sub.2 --NH.sub.2 2HC1wherein R is selected from the group consisting of ##STR1## is provided, the said process comprising reacting R--CH.sub.2 OH.HCL with HSCH.sub.2 CH.sub.2 NH.sub.2 .HC1 in a suitable solvent in the presence of an effective amount of Hydrochloric acid.
    Type: Grant
    Filed: December 13, 1995
    Date of Patent: May 12, 1998
    Assignee: Brantford Chemicals Inc.
    Inventors: K.S. Keshava Murthy, Gamini Weeratunga, Bruno Konrad Radatus, Kanwar Pal Singh Sidhu