Patents by Inventor Francis Back-Posta

Francis Back-Posta 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 N-monoalkyl or M-monoalkenyl anilines
    Patent number: 5132460
    Abstract: A process for the preparation of N-monoalkyl or N-monoalkenyl anilines wherein the aniline is contacted with an alkyl or alkenyl halide in the presence of a non-quaternizable organic base and a salt of a non-quaternizable organic base.
    Type: Grant
    Filed: June 5, 1990
    Date of Patent: July 21, 1992
    Assignee: Rhone-Poulenc Chimie
    Inventors: Jean-Roger Desmurs, Hubert Kempf, Francis Back-Posta