Patents Assigned to Gaba AG
  • Patent number: 4308253
    Abstract: An oral composition for the care of the mouth and teeth which contains as an active ingredient, a compound of the formula: ##STR1## in which R.sup.1 and R.sup.2 in formulas I and II, may be the same or different and are selected from the group consisting of methyl, ethyl, chloroethyl, hydroxyethyl, aminoethyl, carbethoxymethyl, n-propyl, isopropyl, n-butyl, isobutyl, 1-methylpropyl, t-butyl, hexyl, cyclohexyl, methylcyclohexyl, benzyl, phenyl, chlorophenyl, methoxyphenyl, chloronitrophenyl or dimethylnitrophenyl.
    Type: Grant
    Filed: November 30, 1979
    Date of Patent: December 29, 1981
    Assignee: Gaba AG
    Inventors: Hans Schmid, Hans R. Muhlemann
  • Patent number: 4219541
    Abstract: An oral composition for the care of the mouth and teeth which contains as an active ingredient, a compound of the formula: ##STR1## wherein R.sup.1 and R.sup.2, which may be the same or different, are hydrogen atoms, alkyl groups having 1 to 8 carbon atoms, cycloalkyl radicals, aralkyl radicals or aromatic or heterocyclic groups, whereby both R.sup.1 and R.sup.2 can be substituted. The compositions of the present invention inhibit plaque formation, paradentosis and to some extent caries.
    Type: Grant
    Filed: April 28, 1976
    Date of Patent: August 26, 1980
    Assignee: GABA AG
    Inventors: Hans Schmid, Hans R. Muhiemann
  • Patent number: 4088752
    Abstract: Oral compositions for plaque and caries inhibition contain a salt of an oxo-acid (formerly called oxy-acid) of phosphorus or a mixed salt of an oxo-acid of phosphorus and hydrofluoric acid with an organic base.
    Type: Grant
    Filed: June 2, 1975
    Date of Patent: May 9, 1978
    Assignee: Gaba AG
    Inventors: Hans R. Muhlemann, Hans Schmid