Patents by Inventor Jack Leiner

Jack Leiner 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).

  • Evaluating precious metal content in the processing of scrap materials
    Patent number: 6165248
    Abstract: A method for evaluating a batch of scrap material, subsequent to processing of the batch, to determine the content of precious metal present in the batch prior to processing of the batch, includes introducing a predetermined amount of a tracer into the batch, prior to processing, processing the batch and the tracer into a homogenous mixture, assaying a sample portion of the homogenous mixture to assess the amount of tracer in the sample portion, and to assess the amount of precious metal in the sample portion, and ascertaining the content of the precious metal in the batch prior to processing of the batch by applying to the assayed amount of the precious metal a ratio between the predetermined amount of tracer introduced into the batch prior to processing and the assessed amount of tracer in the sample portion.
    Type: Grant
    Filed: May 24, 1999
    Date of Patent: December 26, 2000
    Assignee: Metallic Fingerprints, Inc.
    Inventors: Jack Leiner, Gary A. Wolf