Patents by Inventor Eldon S. Ratcliffe

Eldon S. Ratcliffe 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).

  • Herbicidal composition
    Patent number: 3958977
    Abstract: A herbicidal mixture of 5-acetamido-2,4-dimethyltrifluoromethanesulfonanilide or a horticulturally acceptable salt thereof and 3-[p-(p-chlorophenoxy)phenyl]-1,1-dimethylurea is effective at low rates of application, particularly against certain weed species such as cocklebur, pigweed, morning-glory and the like.
    Type: Grant
    Filed: December 16, 1974
    Date of Patent: May 25, 1976
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: David J. Prochaska, Eldon S. Ratcliffe, Donald W. Gates
  • Herbicidal composition
    Patent number: 3954437
    Abstract: A herbicidal mixture of 5-acetamido-2,4-dimethyltrifluoromethanesulfonanilide or a horticulturally acceptable salt thereof and 3-isopropyl-1H-2,1,3-benzothiadiazin-(4)3H-one 2,2-dioxide or a horticulturally acceptable salt thereof is effective at low rates of application, particularly against certain weed species such as hemp sesbania (coffeeweed).
    Type: Grant
    Filed: December 16, 1974
    Date of Patent: May 4, 1976
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Donald W. Gates, Eldon S. Ratcliffe, David J. Prochaska