Patents by Inventor Hans-Werner Dibbern

Hans-Werner Dibbern 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).

  • Method for treating hypertonia with N-(2-furfuryl)-4-chloro-5-sulfamoyl-anthranilic acid and preparations thereof
    Patent number: 4324779
    Abstract: A method for treating hypertonia with a preparation of N-(2-furfuryl)-4-chloro-5-sulfamoyl-anthranilic acid having a slightly retarded release, wherein the release of the active substance in vitro, measured in the flow through-cell to Dibbern, is not more than 5% after 1 hour in a buffer solution of pH 1.5 and about 10 to at most 25% of the active substance content after a two-hour treatment in a buffer solution of pH 5.5.
    Type: Grant
    Filed: September 20, 1979
    Date of Patent: April 13, 1982
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Gebhard Dahlhausen, Hans-Werner Dibbern, Fulberth, Gerhard Ross