Patents by Inventor Johann-Wilhelm Tack

Johann-Wilhelm Tack 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).

  • 9-haloprostaglandin clathrates and their use as medicines
    Patent number: 5047525
    Abstract: The present application encompasses pharmaceutical preparations, characterized in that they contain as the active component a cyclodextrin clathrate of a prostaglandin of general Formula I ##STR1## wherein R.sub.1 is a hydrogen atom or a straight-chain or branched alkyl residue of up to 10 carbon atoms,R.sub.2 is an alkyl, cycloalkyl, or optionally substituted phenyl group,A and B jointly mean a direct bond orA means a straight- or branched-chain alkylene group of up to 10 carbon atoms andB means an oxygen atom, a direct bond, or a --C.tbd.C--bond, andX means a chlorine or fluorine atom.
    Type: Grant
    Filed: July 6, 1990
    Date of Patent: September 10, 1991
    Assignee: Schering Aktiengesellschaft
    Inventors: Bernd Raduechel, Werner Skuballa, Olaf Loge, Johann-Wilhelm Tack