Patents by Inventor Ruth Hagemann

Ruth Hagemann 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).

  • Solid rapidly disintegrating dosage form
    Patent number: 5211957
    Abstract: The invention relates to a solid, rapidly disintegrating dosage form in the form of effervescent tablets for producing an aqueous suspension of diclofenac for peroral administration. The dosage form contains diclofenac in micronised form provided with a permeable, swellable coating, together with pharmaceutical excipients.
    Type: Grant
    Filed: July 16, 1992
    Date of Patent: May 18, 1993
    Assignee: Ciba-Geigy Corporation
    Inventors: Ruth Hagemann, Dagmar Wirth, Henri-Julien Bronner
  • Preparation of a stablized papain solution
    Patent number: 4118515
    Abstract: An aqueous papain solution having improved storage stability for preventing cold turbidity in beer is prepared by dissolving sodium metabisulphite in water, adjusting the pH with sodium hydroxide to about 4.85, adding papain to obtain a turbid solution, clarifying the turbid solution and adding sucrose while stirring. The papain solution contains by weight 20 to 60% sucrose, 1.5 to 3% sodium metabisulphite and 1 to 35% papain.
    Type: Grant
    Filed: December 15, 1976
    Date of Patent: October 3, 1978
    Assignee: Ciba-Geigy Corporation
    Inventors: Gunter Rommele, Ruth Hagemann