Patents by Inventor Ralph J. Borowski

Ralph J. Borowski 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).

  • Preparation of vinylphosphonate diesters
    Patent number: 4548763
    Abstract: Allylphosphonate diesters are converted to vinyl phosphonate diesters by isomerization with a catalytic amount of a ruthenium catalyst. Vinyl phosphonate derivatives are produced directly from an organo pentavalent phosphorus compound. In a particular reaction conversion of allylic phosphonate diesters to vinylic phosphonate diesters is accomplished by the transition metal mediated isomerization of the alkylphosphonate derivatives with tetrakis(triphenylphosphine)dihydrido ruthenium(II).
    Type: Grant
    Filed: December 5, 1983
    Date of Patent: October 22, 1985
    Assignee: Allied Corporation
    Inventors: David Nalewajek, David S. Soriano, Ralph J. Borowski