Patents by Inventor Armand Brachman

Armand Brachman 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).

  • Color-changing marking composition system
    Patent number: 5464470
    Abstract: A color-changing marking composition system, suitable for use in the form of crayons and pencils, comprising a first marking composition comprising wax, a dye, which is other than a Leuco dye and which is capable of changing color upon contact with a color change-inducing compound, and a solvent capable of solubilizing the dye; and a second marking composition comprising wax and a color change-inducing compound, which is capable of inducing a color change in a dye in a marking composition with which it is brought in contact.
    Type: Grant
    Filed: February 10, 1995
    Date of Patent: November 7, 1995
    Assignee: Binney & Smith Inc.
    Inventors: Armand Brachman, Keith Allison