Patents by Inventor Rudolf Hiltmann

Rudolf Hiltmann 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).

  • Derivatives of 1-(disubstituted phenoxy)-3-amino-2-hydroxypropanes
    Patent number: 4110472
    Abstract: N-Diphenylmethyl and o-biphenylenemethyl derivatives of 1-(disubstituted phenoxy)-3-amino-2-hydroxypropane and their salts are useful for combatting cerebrovascular insufficiency and producing psychostimulation in humans and other animals. The compounds, of which 1-(2-methoxy-4-allylphenoxy)-2-hydroxy-3-diphenylmethylamino-propane is a typical embodiment, can be prepared by a number of synthetic routes.
    Type: Grant
    Filed: October 13, 1976
    Date of Patent: August 29, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Rudolf Hiltmann, Arend Heise, Stanislav Kazda, Friedrich Hoffmeister
  • Enteral pharmaceutical compositions
    Patent number: 4070494
    Abstract: Enteral pharmaceutical compositions containing medicinal agents having parenteral abuse potential are rendered resistant to aqueous extraction through the incorporation of a sufficient amount of a nontoxic, water gelable material. Attempts to extract the medicinal agent for parenteral abuse are thus inhibited or prevented since the material gels in the presence of water leaving no filterable liquid.
    Type: Grant
    Filed: December 15, 1975
    Date of Patent: January 24, 1978
    Assignee: Bayer Aktiengesellschaft
    Inventors: Friedrich Hoffmeister, Rudolf Hiltmann, Hartmund Wollweber, Helmut Kramer