Patents by Inventor Erhard J. Prill

Erhard J. Prill 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).

  • Glyphosate formulations
    Patent number: 6228807
    Abstract: This invention relates to dry, water soluble, agriculturally acceptable herbicidal compositions, to a herbicidal method of use thereof and and to a process for preparing such compositions. This invention also relates to dry, water soluble and/or water dispersible, agriculturally acceptable herbicidal compositions containing two or more herbicides, a herbicidal method of use thereof and to a process for preparing such compositions.
    Type: Grant
    Filed: July 23, 1997
    Date of Patent: May 8, 2001
    Assignee: Monsanto Company
    Inventors: Masuo Kuchikata, Erhard J. Prill, Ronald O. Richardson, Tatsuo Sato, John M. Surgant, Daniel R. Wright
  • Glyphosate formulations
    Patent number: 5872078
    Abstract: This invention relates to dry, water soluble, agriculturally acceptable herbicidal compositions, to a herbicidal method of use thereof and and to a process for preparing such compositions. This invention also relates to dry, water soluble and/or water dispersible, agriculturally acceptable herbicidal compositions containing two or more herbicides, a herbicidal method of use thereof and to a process for preparing such compositions.
    Type: Grant
    Filed: July 22, 1997
    Date of Patent: February 16, 1999
    Assignee: Monsanto Europe S.A.
    Inventors: Masuo Kuchikata, Erhard J. Prill, Ronald O. Richardson, Tatsuo Sato, John M. Surgant, Daniel R. Wright
  • Method of controlling weeds
    Patent number: 5656572
    Abstract: This invention relates to dry, water soluble, agriculturally acceptable herbicidal compositions, to a herbicidal method of use thereof and and to a process for preparing such compositions. This invention also relates to dry, water soluble and/or water dispersible, agriculturally acceptable herbicidal compositions containing two or more herbicides, a herbicidal method of use thereof and to a process for preparing such compositions.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: August 12, 1997
    Assignee: Monsanto Company
    Inventors: Masuo Kuchikata, Erhard J. Prill, Ronald O. Richardson, Tatsuo Sato, John M. Surgant, Daniel R. Wright
  • Herbicidal emulsions
    Patent number: 4440562
    Abstract: The invention is directed to a water-dispersible herbicide emulsion composition which contains as the active ingredient a water-soluble herbicide, i.e., the isopropylamine salt of N-phosphonomethylglycine, combined with a water-insoluble 2-haloacetanilide herbicide, as for example, 2-chloro-N-methoxymethyl-2',6'-diethyl acetanilide (alachlor).
    Type: Grant
    Filed: July 20, 1981
    Date of Patent: April 3, 1984
    Assignee: Monsanto Company
    Inventor: Erhard J. Prill
  • Corrosion inhibited agricultural compositions
    Patent number: 4159901
    Abstract: Corrosion of metal surfaces contacted by aqueous agricultural compositions containing as an active ingredient an aminomethylenephosphonic acid, such as N-phosphonomethylglycine or an agriculturally acceptable salt or ester thereof is inhibited by the inclusion in the compositions of an inhibiting amount of a thiol compound or salt thereof.
    Type: Grant
    Filed: December 27, 1977
    Date of Patent: July 3, 1979
    Assignee: Monsanto Company
    Inventors: George B. Beestman, Erhard J. Prill
  • Sodium sesquiglyphosate
    Patent number: 4140513
    Abstract: The sesquisodium salt of N-phosphonomethylglycine is a unique crystalline compound which has utility as a post-emergent herbicide and is also useful to increase the sucrose content of sugarcane.
    Type: Grant
    Filed: January 3, 1978
    Date of Patent: February 20, 1979
    Assignee: Monsanto Company
    Inventor: Erhard J. Prill