Patents by Inventor Robert M. Perrin

Robert M. 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 chloromethylisopropyphenols
    Patent number: 4154968
    Abstract: 4-Chloro-3-methyl-2-isopropyl and 4-chloro-3-methyl-5-isopropyl phenols are effective as bactericides and fungicides, especially against staphylococcus, pneumococcus and tricoccus microorganisms in doses as low as 5 parts per million.
    Type: Grant
    Filed: February 17, 1978
    Date of Patent: May 15, 1979
    Assignee: Chrysa
    Inventors: Robert M. Perrin, Gisele Aureille, Marie-Francoise Vincent-Falquet, Edmond Collange