Patents by Inventor Jean-Pierre Obrecht

Jean-Pierre Obrecht 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).

  • Heterocyclic compounds
    Patent number: 5428002
    Abstract: The invention relates to compounds of formula ##STR1## wherein W, X, Y.sup.1, Y.sup.2, Z, R.sup.1, R.sup.2 and R.sup.14 are as defined in the description, and to the preparation thereof, to weed control compositions and plant-growth-regulating compositions comprising such compounds as active ingredients, and to the use of the active ingredients or compositions for controlling weeds and for regulating plant growth.
    Type: Grant
    Filed: May 13, 1994
    Date of Patent: June 27, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Christoph Luthy, Jean-Pierre Obrecht
  • Heterocyclic compounds
    Patent number: 5332717
    Abstract: The invention relates to compounds of formula ##STR1## wherein W, X, Y.sup.1, Y.sup.2, Z, R.sup.1, R.sup.2 and R.sup.14 are as defined in the description, and to the preparation thereof, to weed control compositions and plant-growth-regulating compositions comprising such compounds as active ingredients, and to the use of the active ingredients or compositions for controlling weeds and for regulating plant growth.
    Type: Grant
    Filed: April 15, 1993
    Date of Patent: July 26, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Christoph Luthy, Jean-Pierre Obrecht
  • 2H-Imidazo(1',2':1,2)pyrrolo(3,4-B)pyridine compounds, and their use as herbicidal agents
    Patent number: 4741767
    Abstract: The invention is concerned with novel weed control compositions which contain herbicidally-active compounds of the formula ##STR1## wherein ring A, R.sup.1, R.sup.2, R.sup.3, Y and Z are as hereinafter set forth, and the use of these compounds and compositions for the control of weeds. The invention is also concerned with novel compounds of formula I as well as their preparation.
    Type: Grant
    Filed: November 6, 1985
    Date of Patent: May 3, 1988
    Assignee: Hoffmann-La Roche Inc.
    Inventor: Jean-Pierre Obrecht