Patents by Inventor Lars-Olof Willard

Lars-Olof Willard 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).

  • Patent number: 4636382
    Abstract: Novel morpholino compounds having the general formula ##STR1## wherein R.sub.1 is a straight or branched alkyl group containing 8 to 16 carbon atoms at the 2- or 3-position of the morpholino ring, and R.sub.2 is a straight or branched alkyl group containing 2 to 10 carbon atoms, substituted with a hydroxy group except in the alpha-position, the sum of the carbon atoms in the groups R.sub.1 and R.sub.2 being at least 10 and preferably 10 to 20; and pharmaceutically acceptable salts thereof. Compositions for the treatment of the oral cavity and especially the tooth surfaces containing the novel compound or a salt thereof, preferably from 0.1 to 5% by weight thereof. Use of the compounds to inhibit the formation of dental plaque or remove plaque already formed by application of the compound in an aqueous solution or a composition to the surfaces of the oral cavity, especially the surfaces of the teeth. Processes for the preparation of the compounds.
    Type: Grant
    Filed: February 14, 1985
    Date of Patent: January 13, 1987
    Assignee: AB Ferrosan
    Inventors: Sven E. H. Hernestam, Nils A. Nilsson, Lars-Olof Willard
  • Patent number: 4144320
    Abstract: Aminoalcohol compounds and acid addition salts thereof, useful in the prevention and treatment of dental caries and periodontitis, are disclosed. Methods of preparing said derivatives, orally acceptable compositions containing said compounds, and a method of treatment therewith are also disclosed.
    Type: Grant
    Filed: April 12, 1977
    Date of Patent: March 13, 1979
    Assignee: AB Ferrosan
    Inventors: Sven E. H. Hernestam, Nils A. Nilsson, Lars-Olof Willard
  • Patent number: 4119711
    Abstract: Novel spiro 1-(hydroxyalkyl)-piperidino derivatives and acid addition salts thereof, useful in the prevention and treatment of dental caries and periodontitis, are disclosed. Methods of preparing said derivatives, orally acceptable compositions containing said compounds, and a method of treatment therewith are also disclosed.
    Type: Grant
    Filed: March 11, 1977
    Date of Patent: October 10, 1978
    Assignee: AB Ferrosan
    Inventors: Sven Erik Harry Hernestam, Nils Arne Nilsson, Curt Harry Nordvi, Lars-Olof Willard