Patents by Inventor Johnny Leroy Armstrong

Johnny Leroy Armstrong 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).

  • Emulsifiable liquid concentrates containing 4-amino-6-t-butyl-3-(methylthio)-1,2,4-triazin-5-one and 2-chloro-N-(2,6-diethylphenyl)-N-methoxymethylacetamide
    Patent number: 3986862
    Abstract: Chemically and physically stable herbicidal, water-emulsifiable, liquid concentrates containing 4-amino-6-t-butyl-3-(methylthio)-1,2,4-triazin-5-one (metribuzin) and 2-chloro-N-(2,6-diethylphenyl)-N-methoxymethylacetamide (alachlor) are dissolved with an appropriate emulsifying agent in chlorobenzene. The concentrates contain an unexpectedly large amount of metribuzin and alachlor at relatively low temperatures, indicating the existence of solvent synergism.
    Type: Grant
    Filed: July 3, 1974
    Date of Patent: October 19, 1976
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Johnny Leroy Armstrong