Patents by Inventor Roger Prétôr

Roger Prétôr 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 preparing armatic thiophenyl ketones
    Publication number: 20110130482
    Abstract: The invention provides a process for synthesizing aromatic thioether ketones comprising reacting an aromatic thioether with an acylating agent in the presence of heteropoly acids or heteropoly acid-containing solid supports or the salts of heteropoly acids.
    Type: Application
    Filed: September 19, 2005
    Publication date: June 2, 2011
    Inventors: Roger Prétôr, Paul Adriaan Der Schaaf, Rolf Kugler, Walter Wolf