Patents by Inventor Bareld E. Groenwold

Bareld E. Groenwold 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).

  • Synergistic herbicidal composition of cycloate and cyanazine
    Patent number: 5051125
    Abstract: A synergistic herbicidal composition with residual activity comprises cycloate and cyanazine in a weight ratio of about 2:1 to 4:1, plus preferably a thiocarbamate herbicide antidote.
    Type: Grant
    Filed: June 20, 1990
    Date of Patent: September 24, 1991
    Assignee: ICI Americas Inc.
    Inventors: Bareld E. Groenwold, James L. Ahle
  • Synergistic herbicidal combination
    Patent number: 4456472
    Abstract: A mixture of the herbicides napropamide and butam has been found to exhibit synergistic results, particularly in pre-emergence surface application or pre-plant incorporation, and for controlling weeds in the presence of a rapeseed crop.
    Type: Grant
    Filed: November 29, 1982
    Date of Patent: June 26, 1984
    Assignee: Stauffer Chemical Company
    Inventor: Bareld E. Groenwold
  • Synergistic herbicidal combination
    Patent number: RE32483
    Abstract: A mixture of the herbicides napropamide and butam has been found to exhibit synergistic results, particularly in pre-emergence surface application or pre-plant incorporation, and for controlling weeds in the presence of a rapeseed crop.
    Type: Grant
    Filed: February 24, 1986
    Date of Patent: August 25, 1987
    Assignee: Stauffer Chemical Co.
    Inventor: Bareld E. Groenwold