Patents by Inventor Arthur Albert Ramsey

Arthur Albert Ramsey 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).

  • Nitroisothiazolylureas as herbicides
    Patent number: 4057415
    Abstract: A new class of herbicidal compounds consisting of 1-alkyl- and 1,1-dialkyl-3-(3-substituted-4-nitro-5-iso-thiazolyl)ureas in which the 3-substituent consists of alkyl, alkoxy, alkylamino, alkylthio, alkylsulfinyl, and alkylsulfonyl exhibits preemergence and postemergence herbicidal activity, controlling effectively the growth of a wide spectrum of grassy and broad-leaved plant species. The synthesis of a representative member of this class is described in detail, and its utility is exemplified.
    Type: Grant
    Filed: June 18, 1976
    Date of Patent: November 8, 1977
    Assignee: FMC Corporation
    Inventor: Arthur Albert Ramsey
  • Substituted 2-arylquinazolines as fungicides
    Patent number: 3998951
    Abstract: Fungicidal compositions based on substituted 2-arylquinazolines exhibit antifungal activity particularly against rusts and mildews. The synthesis of new compounds is described and the utility of antifungal compositions is exemplified.
    Type: Grant
    Filed: March 13, 1974
    Date of Patent: December 21, 1976
    Assignee: FMC Corporation
    Inventors: Wayne Nelson Harnish, Arthur Albert Ramsey