Patents by Inventor Mark E. McAlees

Mark E. McAlees 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).

  • Adhesiveless aromatic polyimide laminate
    Patent number: 5525405
    Abstract: An aromatic polyimide laminate having a thickness of at least 50 microns composed of multiple aromatic polyimide film layers containing from 400 to 10,000 ppm of tin, superimposed on and directly bonded to each other without using an adhesive. The polyimide laminates can be used in various thick film applications such as punched gaskets and washers, speaker coils, shim stock, circuit boards and machined parts.
    Type: Grant
    Filed: December 14, 1994
    Date of Patent: June 11, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Darrel E. Coverdell, Harrison V. Gumm, Mark E. McAlees