Patents by Inventor Eric S. Kopfstein

Eric S. Kopfstein 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).

  • Strain relief for electrical wire
    Patent number: D344444
    Type: Grant
    Filed: September 14, 1992
    Date of Patent: February 22, 1994
    Assignee: Motorola, Inc.
    Inventors: Eric S. Kopfstein, Bruce D. Hillier