Patents by Inventor Louis J. Hover

Louis J. Hover 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).

  • Process for the preparation of dialkyltin dihalides
    Patent number: 4052427
    Abstract: The preparation of dialkyltin dihalides and mixed dialkyltin dihalides, by refluxing a dimethyltin dihalide with a higher alkyl-halide in the presence of a phosphonium iodide catalyst, useful as intermediates for PVC stabilizers.
    Type: Grant
    Filed: June 21, 1976
    Date of Patent: October 4, 1977
    Assignee: Witco Chemical Corporation
    Inventors: William E. Leistner, Gerald H. Spiegelman, Louis J. Hover