Patents by Inventor Ann M. Brearley

Ann M. Brearley 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).

  • Near-infrared measurement and control of polyamide processes
    Patent number: 5532487
    Abstract: This invention relates to a method for the measurement and control of polyamides and polyamide precursor mixtures by means of near-infrared spectroscopy.
    Type: Grant
    Filed: November 23, 1994
    Date of Patent: July 2, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Ann M. Brearley, Harvey S. Gold