Patents by Inventor Leon T. Lucas

Leon T. Lucas 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).

  • Fungicidal compositions for the treatment of crown and root rot in turfgrass
    Patent number: 5665672
    Abstract: Fungicidal compositions for the protection of turfgrass against crown and root rot are disclosed. The compositions comprise, as the active material, a mixture of (a) a monoester salt of a phosphorous acid (preferably aluminum ethyl phosphite), and (b) an ethylene bisdithiocarbamate contact fungicide (preferably manganese-zinc ethylene bisdithiocarbamate). Preferred compsitions comprise one part by weight of the monosester salt to two parts by weight of the ethylene bisdithiocarbamate.
    Type: Grant
    Filed: February 1, 1996
    Date of Patent: September 9, 1997
    Assignee: North Carolina State University
    Inventor: Leon T. Lucas
  • Fungicidal compositions for the enhancement of turf quality
    Patent number: 5643852
    Abstract: Fungicidal compositions for the protection of turfgrass against crown and root rot are disclosed. The compositions comprise, as the active material, (a) a monoester salt of a phosphorous acid (preferably aluminum ethyl phosphite), (b) an ethylene bisdithiocarbamate contact fungicide (preferably manganese-zinc ethylene bisdithiocarbamate), and (c) a benzoporphyrin compound. Preferred compositions comprise 1 part by weight of the monoester salt, 2 parts by weight of the ethylene bisdithiocarbamate, and between about 0.01 and about 0.1 parts by weight of the benzoporphyrin compound.
    Type: Grant
    Filed: April 3, 1995
    Date of Patent: July 1, 1997
    Assignee: North Carolina State University
    Inventors: Leon T. Lucas, Laurence C. Mudge
  • Method for enhancing turf quality of bent grass
    Patent number: 5336661
    Abstract: Fungicidal compositions for the protection of turfgrass against crown and root rot are disclosed. The compositions comprise, as the active material, a mixture of (a) a monoester salt of a phosphorous acid (preferably aluminum ethyl phosphite), and (b) an ethylene bisdithiocarbamate contact fungicide (preferably manganese-zinc ethylene bisdithiocarbamate). Preferred compositions comprise one part by weight of the monosester salt to two parts by weight of the ethylene bisdithiocarbamate.
    Type: Grant
    Filed: January 13, 1993
    Date of Patent: August 9, 1994
    Assignee: North Carolina State University
    Inventor: Leon T. Lucas