Patents by Inventor Bengt G. Berg

Bengt G. Berg 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).

  • Hearing-protector plug
    Patent number: 5557077
    Abstract: Hearing-protector plug made of plug material in which there is distributed a detectable material in powder form, particularly iron powder. If lost, such as in the food industry, the plug can be traced with the aid of detection equipment.
    Type: Grant
    Filed: October 5, 1993
    Date of Patent: September 17, 1996
    Assignee: Bilsom AB
    Inventor: Bengt G. Berg