Patents by Inventor Robert Marc Perrin

Robert Marc Perrin 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).

  • Bactericidic and fungicidic chloromethylisopropylphenols
    Patent number: 4098828
    Abstract: Chloromethylisopropylphenois, namely 4-chloro-3-methyl-2-isopropyl phenol, 4-chloro-3-methyl-5-isopropyl phenol and their 6,6'-methylene and 2,2'-methylene bis derivatives, effective as a bactericide and fungicide, especially against staphylococcus, pneumococcus and tricoccus. They are effective in doses as low as 5 ppm, are stable, substantially odor-free and can be readily prepared by conventional chemical reactions to obtain a substantially nontoxic white product.
    Type: Grant
    Filed: May 7, 1973
    Date of Patent: July 4, 1978
    Assignee: Chrysa
    Inventors: Robert Marc Perrin, Gisele Aureille, Marie-Francoise Vincent-Falquet, Edmond Collange