Patents by Inventor Dietrich Schmaehl

Dietrich Schmaehl 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).

  • 1-hydroxy-1,1-diphosphonic acids and cytostatic use thereof
    Patent number: 4608368
    Abstract: 1-hydroxy-1,1-diphosphonic acid compounds corresponding to the following general formula ##STR1## in which R and R.sub.1 represent hydrogen or methyl,X represents hydrogen, halogen, amino, which may be acyl substituted, lower alkyl, which may be substituted by amino or acyl substituted amino, or lower alkoxy,Y represents O, S or NHZ represents lower alkylene, which may be substituted by amino or acyl substituted amino, andm and n have the value 0 or 1 with the proviso that, where n is 1, m is also 1;and to pharmacologically compatible salts thereof.The invention also relates to a process for producing these compounds and to their use in pharmacological preparations having cytostatic activity.
    Type: Grant
    Filed: July 10, 1985
    Date of Patent: August 26, 1986
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Helmut Blum, Wolfgang Greb, Hinrich Moeller, Dietrich Schmaehl, Harald Schnegelberger, Hannsjoerg Sinn, Franz Wingen