Patents by Inventor Jose O. Siqueira

Jose O. Siqueira 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).

  • Method and compositions for stimulating vesicular-arbuscular mycorrhizal fungi using isoflavonoids
    Patent number: 5125955
    Abstract: A method and compositions for stimulating the growth of vesicular-arbuscular mycorrhizal fungi alone or in the presence of a plant material using isoflavonoid compounds is described. The isoflavonoids are preferably of the formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are selected from the group consisting of hydrogen, hydroxyl and alkoxy, particularly methoxy.
    Type: Grant
    Filed: October 1, 1990
    Date of Patent: June 30, 1992
    Assignee: Board of Trustees operating Michigan State University
    Inventors: Gene R. Safir, Muraleedharan G. Nair, Jose O. Siqueira
  • Method and compositions for stimulating vesticular-arbuscular mycorrhizal fungi using isoflavonoids
    Patent number: 5085682
    Abstract: A method and compositions for stimulating the growth of vesicular-arbuscular mycorrhizal fungi alone or in the presence of a plant material using isoflavonoid compounds is described. The isoflavonoids are preferably of the formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are selected from the group consisting of hydrogen, hydroxyl and alkoxy, particularly methoxy.
    Type: Grant
    Filed: October 1, 1990
    Date of Patent: February 4, 1992
    Assignee: Board of Trustees operating Michigan State University
    Inventors: Gene R. Safir, Muraleedharan G. Nair, Jose O. Siqueira
  • Method and compositions for stimulating vesicular-arbuscular mycorrhizal fungi
    Patent number: 5002603
    Abstract: A method and compositions for stimulating the growth of vesicular-arbuscular mycorrhizal fungi alone or in the presence of a plant material using isoflavonoid compounds is described. The isoflavonoids are preferably of the formula: ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are selected from the group consisting of hydrogen, hydroxyl and alkoxy, particularly methoxy.
    Type: Grant
    Filed: December 4, 1989
    Date of Patent: March 26, 1991
    Assignee: Board of Trustees operating Michigan State University
    Inventors: Gene R. Safir, Muraleedharan G. Nair, Jose O. Siqueira