Patents by Inventor Fred M. Tuffile

Fred M. Tuffile 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).

  • Method of dyeing human hair with reactive dyes
    Patent number: 4102641
    Abstract: A process for permanently dyeing keratinous fibers with halotriazinyl reactive dyes wherein good leveling and uptake is attained. More particularly, a process for dyeing human hair comprising subjecting the fibers to sequential treatment of first applying to the fibers a halotriazinyl reactive dye at a pH of from about 4 to 6.5 and then allowing the dye to bond with the fibers at a pH of about 8 to 8.5.
    Type: Grant
    Filed: September 29, 1972
    Date of Patent: July 25, 1978
    Assignee: Avon Products, Inc.
    Inventors: Fred M. Tuffile, Andrew J. Cunningham