Patents by Inventor Mark Der Estephanian

Mark Der Estephanian 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).

  • Low cost, high performance sweatband
    Patent number: 4833734
    Abstract: A low cost sweatband is provided formed of an elastic fabric core of a length to resiliently encircle the head or wrist, and a low strength, highly absorbent paper fabric cover of excess length which is gathered into a cushioning, absorbent pad by stitching onto the elastic fabric.
    Type: Grant
    Filed: April 21, 1987
    Date of Patent: May 30, 1989
    Inventor: Mark Der Estephanian