Patents by Inventor Hans-Bertil Johansson

Hans-Bertil Johansson 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).

  • Anticaries piperidino compounds
    Patent number: 4235875
    Abstract: Novel alkyl 1-(hydroxyalkyl)piperidines and acid addition salts thereof, useful as inhibitors of dental plaque and therefore also useful against dental caries and periodontitis, are disclosed. Methods of making same, orally-acceptable compositions thereof, a method of treating therewith, and important and novel intermediates for the production thereof are also disclosed.
    Type: Grant
    Filed: April 24, 1978
    Date of Patent: November 25, 1980
    Assignee: A.B. Ferrosan
    Inventors: Sven E. H. Hernestam, Lars O. Willard, Aina L. Abramo, Hans-Bertil Johansson