Patents by Inventor Kaspar Burri

Kaspar Burri 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).

  • Glycerol derivatives
    Patent number: 5057530
    Abstract: Glycerol derivatives of the formula ##STR1## wherein one of the residues R.sup.1, R.sup.2 and R.sup.3 is a group U of the formula OY.sup.1 or --X.sup.1 --CO--(A.sup.1).sub.n --Z.sup.1, another residue is a group V of the formula OY.sup.2 or --X.sup.2 --CO--(A.sup.2).sub.p --Z.sup.2, and the remaining residue is a group W of the formula --X.sup.3 T--(C.sub.2-6 -alkylene)-N.sup.+ R A.sup.- in which one of X.sup.1, X.sup.2 and X.sup.3 is oxygen or NQ.sup.1 and the other two are oxygen and the remaining symbols have the significance given below, and their hydrates are described and are prepared by introducing or generating the residues R.sup.1, R.sup.2 and R.sup.3 in corresponding glycerol derivatives.The compounds of formula I are active as inhibitors of blood platelet activating factor or as inhibitors of the growth of tumors.
    Type: Grant
    Filed: May 19, 1989
    Date of Patent: October 15, 1991
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Richard Barner, Kaspar Burri, Jean-Marie Cassal, Paul Hadvary, Georges Hirth, Klaus Muller
  • Glycerol derivatives
    Patent number: 4863941
    Abstract: Glycerol derivatives of the formula ##STR1## wherein one of the residues R.sup.1, R.sup.2 and R.sup.3 is a group U of the formula OY.sup.1 or --X.sup.1 --CO--(A.sup.1).sub.n --Z.sup.1, another residue is a group V of the formula OY.sup.2 or --X.sup.2 --CO--(A.sup.2).sub.p --Z.sup.2, and the remaining residue is a group W of the formula --X.sup.3 T--(C.sub.2-6 -alkylene)-N.sup.+ R A.sup.- in which one of X.sup.1, X.sup.2 and X.sup.3 is oxygen or NQ.sup.1 and the other two are oxygen and the remaining symbols have the significance given below, and their hydrates are described and are prepared by introducing or generating the residues R.sup.1, R.sup.2 and R.sup.3 in corresponding glycerol derivatives.The compounds of formula I are active as inhibitors of blood platelet activating factor or as inhibitors of the growth of tumors.
    Type: Grant
    Filed: June 5, 1986
    Date of Patent: September 5, 1989
    Assignee: Hoffmann-La Roche Inc.
    Inventors: Richard Barner, Kaspar Burri, Jean-Marie Cassal, Paul Hadvary, Georges Hirth, Klaus Muller