Patents by Inventor Kelvin K. Shen

Kelvin K. Shen 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).

  • O-Amidophenylmorpholine compounds
    Patent number: 4168151
    Abstract: o-Amidophenylmorpholine compounds having a halo, haloalkyl, lower alkylsulfonyl, halo-lower alkylsulfonyl, or lower alkyl substituent on the aromatic ring para to the morpholino nitrogen. The compounds are useful as herbicides.
    Type: Grant
    Filed: December 13, 1978
    Date of Patent: September 18, 1979
    Assignee: United States Borax & Chemical Corporation
    Inventors: Kelvin K. Shen, Wayne S. Belles
  • O-amidophenylmorpholine compounds
    Patent number: 4153443
    Abstract: o-Amidophenylmorpholine compounds having a halo, haloalkyl, lower alkylsulfonyl, halo-lower alkylsulfonyl, or lower alkyl substituent on the aromatic ring para to the morpholino nitrogen. The compounds are useful as herbicides.
    Type: Grant
    Filed: August 3, 1978
    Date of Patent: May 8, 1979
    Assignee: United States Borax & Chemical Corporation
    Inventors: Kelvin K. Shen, Wayne S. Belles
  • (Aminophenyl)morpholines
    Patent number: 4133673
    Abstract: (2-Aminophenyl)morpholine compounds having a haloalkyl, lower alkylsulfonyl, halo-lower alkylsulfonyl, or branched-chain alkyl substituent on the aromatic ring para to the morpholino nitrogen. The compounds are useful as herbicides and may be used as intermediates for making herbicidal compounds.
    Type: Grant
    Filed: April 25, 1978
    Date of Patent: January 9, 1979
    Assignee: United States Borax & Chemical Corporation
    Inventors: Kelvin K. Shen, Wayne S. Belles
  • (Aminophenyl)morpholines and use thereof
    Patent number: 4133672
    Abstract: (2-Aminophenyl)morpholine compounds having a haloalkyl, lower alkylsulfonyl, halo-lower alkylsulfonyl, or branched-chain alkyl substituent on the aromatic ring para to the morpholino nitrogen. The compounds are useful as herbicides and may be used as intermediates for making herbicidal compounds.
    Type: Grant
    Filed: February 7, 1977
    Date of Patent: January 9, 1979
    Assignee: United States Borax & Chemical Corporation
    Inventors: Kelvin K. Shen, Wayne S. Belles
  • O-Phosphoroamidophenylmorpholine compounds and use as herbicides
    Patent number: 4126442
    Abstract: o-Phosphoroamidophenylmorpholines of the structure ##STR1## wherein Y represents a branched chain alkyl group of 3 to about 6 carbon atoms and z represents the group ##STR2## in which R.sub.1 is lower alkyl, lower alkenyl, aralkyl or aryl, R.sub.2 is hydrogen, lower alkyl, lower alkenyl, aralkyl or aryl, and X is O or S. The compounds are useful as herbicides and may be applied as a pre-emergence or post-emergence treatment to control unwanted plants.
    Type: Grant
    Filed: March 23, 1978
    Date of Patent: November 21, 1978
    Assignee: United States Borax & Chemical Corp.
    Inventors: Kelvin K. Shen, Thomas S. Griffin
  • O-Amidophenylmorpholine compounds and method of use
    Patent number: 4123251
    Abstract: o-Amidophenylmorpholine compounds having a halo, haloalkyl, lower alkylsulfonyl, halo-lower alkylsulfonyl, or lower alkyl substituent on the aromatic ring para to the morpholino nitrogen. The compounds are useful as herbicides.
    Type: Grant
    Filed: June 2, 1977
    Date of Patent: October 31, 1978
    Assignee: United States Borax & Chemical Corporation
    Inventors: Kelvin K. Shen, Wayne S. Belles