Patents by Inventor Robert J. Theissen

Robert J. Theissen 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).

  • 2-Nitro-5-(cyano-trifluoromethyl-phenoxy)benzoic acids and esters
    Patent number: 4002662
    Abstract: 2-Nitro-5-(substituted-phenoxy) benzoic acids and esters salts, amides, and acyl halides thereof comprise a class of compounds that are highly effective herbicides.
    Type: Grant
    Filed: January 29, 1975
    Date of Patent: January 11, 1977
    Assignee: Mobil Oil Corporation
    Inventor: Robert J. Theissen
  • Herbicidal compositions comprising halophenoxy benzoic acid esters
    Patent number: 4001005
    Abstract: Alkyl (C.sub.4 -C.sub.12), cycloalkyl (C.sub.3 -C.sub.8), and unsaturated hydrocarbyl (C.sub.3 -C.sub.10) esters of 2-nitro-5-(halophenoxy)benzic acids comprise a class of compounds that are highly effective pre- and post-emergence herbicides.
    Type: Grant
    Filed: May 12, 1975
    Date of Patent: January 4, 1977
    Assignee: Mobil Oil Corporation
    Inventor: Robert J. Theissen
  • Halophenoxy benzoic acid salts
    Patent number: 3983168
    Abstract: Metal salts and amine salts of 2-nitro-5-(halophaenoxy) benzoic acids comprise a class of compounds that are highly effective pre- and post-emergence herbicides.
    Type: Grant
    Filed: September 4, 1975
    Date of Patent: September 28, 1976
    Assignee: Mobil Oil Corporation
    Inventor: Robert J. Theissen
  • Substituted phenoxybenzoic acids and derivatives thereof
    Patent number: 3979437
    Abstract: 2-Nitro-5-(substituted-phenoxy)benzoic acids and esters, salts, amides, and acyl halides thereof comprise a class of compounds that are highly effective herbicides.
    Type: Grant
    Filed: September 29, 1975
    Date of Patent: September 7, 1976
    Assignee: Mobil Oil Corporation
    Inventor: Robert J. Theissen
  • Substituted phenoxybenzoic acids and esters thereof
    Patent number: 3941830
    Abstract: 2-Nitro-5-(substituted-phenoxy)benzoic acids and esters salts, amides, and acyl halides thereof comprise a class of compounds that are highly effective herbicides.
    Type: Grant
    Filed: September 19, 1973
    Date of Patent: March 2, 1976
    Assignee: Mobil Oil Corporation
    Inventor: Robert J. Theissen