Patents by Inventor Dov Carmeli

Dov Carmeli 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 detecting counterfeit paper currency
    Patent number: 5063163
    Abstract: A method of detecting counterfeit paper currency includes applying a test solution having an initial color to an area of a paper currency to be tested. After waiting for a predetermined time period, the color of the test area is compared with a predetermined standard to determine if a reaction has taken place, whereby on the application of the test solution to a counterfeit paper currency the net result will be a color change from its initial color to a black coloration and for a genuine paper currency there will be no immediate change in its initial color.
    Type: Grant
    Filed: March 20, 1990
    Date of Patent: November 5, 1991
    Assignee: Ach Group, Inc.
    Inventor: Dov Carmeli