Patents Assigned to Cominco Fertilizers
  • Sulfur-based fertilizer and process for production thereof
    Patent number: 5571303
    Abstract: A particulate sulfur-based fertilizer comprising a uniform dispersion of sulfur and at least one member selected from the group consisting of ammonium sulfate, ammonium phosphate and mixtures thereof, the sulfur having an average particle size of less than about 100 .mu.m. A process for producing a sulfur-based fertilizer is also described.
    Type: Grant
    Filed: March 6, 1995
    Date of Patent: November 5, 1996
    Assignee: Cominco Fertilizers Ltd.
    Inventor: Stewart G. Bexton
  • Plant growth-promoting rhizobacteria for agronomic, nonroot crops
    Patent number: 5503651
    Abstract: Bacterial strains can be reproducibly isolated from the rhizosphere that enhance yield in nonroot crops under field conditions.
    Type: Grant
    Filed: January 31, 1995
    Date of Patent: April 2, 1996
    Assignee: Cominco Fertilizers
    Inventors: Joseph Kloepper, Fran Scher
  • Bacterial cultures for root-colonizing plants
    Patent number: 5503652
    Abstract: Bacterial strains can be reproducibly isolated from soil that are root-colonizing and directly promote plant development. For example, strains of soil bacteria are provided that are good root colonizers and that promote plant growth under gnotobiotic conditions.
    Type: Grant
    Filed: January 31, 1995
    Date of Patent: April 2, 1996
    Assignee: Cominco Fertilizers
    Inventors: Joseph W. Kloepper, Catherine Simonson, Ran Lifshitz